A short answer is provided by The Economist below, one of the many answers possible, all very positive:

In worldwide rankings more than half of the top 100 universities, and eight of the top ten, are American. The scientific output of American institutions is unparalleled. They produce most of the world’s Nobel laureates and scientific papers.

In 1962 one cent of every dollar spent in America went on higher education; today this figure has tripled. The USA is spending a greater proportion of its GDP on universities than any other country.

The Economist, Dec 1 2012 (adapted)

As a result, U.S. universities stands out for the academic quality they offer and its worldwide appreciation on the labor market, the comprehensive, hands-on learning available on their cutting edge campuses, the flexibility and personalized approach students enjoy, as well as the global focus that makes U.S. university graduates valuable employees all over the world, alongside the vibrant, merit-based American culture and its generous,accepting, and supportive people.

A longer answer is offered by the USA Study Guide. Inspirational, isn’t it?

The U.S. offers international students the most exciting, rewarding and comprehensive array of study options in the world. International students who choose to study in the US have almost unlimited choices. Furthermore, international students who successfully complete their degrees in the USA are highly sought-after by employers worldwide. As such, the United States is the premiere destination for international students from all over the world. The main advantages of higher education in the USA include:

World class learning institutions

The United States has more institutions of higher learning than any other country in the world. More importantly than that, however, is the quality of these academic bodies. Most American colleges and universities offer top-notch education programs with highly qualified teaching staff. The research at many of these universities is cutting-edge and often published in journals worldwide. Many of the professors at these schools are leading authorities in their field. The list of world-class learning institutions in the USA is endless and include, but are not limited to: Stanford University, Harvard, Yale, Cornell, California Institute of Technology, UC Berkeley, University of Pennsylvania, MIT, John Hopkins, Northwestern University, etc.

One of the best things about studying in the USA is the vast number of academic options offered to students. Since the USA is such a large country with vast resources, almost every field of study is available in the country.

One can study everything from Russian history to nuclear physics. That is why so may foreigners choose to obtain their training in the USA. If you can perceive it, you can probably find some place in America to study it.

Nobel laureates

The superior academic and research standards on U.S. campuses account for the Nobel awards attracted by university representatives. For example the University of Chicago can claim 73 recipients of the Nobel Prize amongst its past and present faculty members, students, and researchers. Harvard University has had 38 Nobel laureates as members of its faculty and can also claim three graduates who have received Nobel prizes. The University of California at Berkeley has had 17 Nobel laureates serve as researchers or professors. Numerous other American schools can also boast about Nobel prize winners who have either taught or studied there.

Worldwide recognition

A degree or certificate from a college or university is useless if it is not recognized by employers, other institutions or field authorities. Fortunately, colleges and universities in America are given professional accreditation by different governing bodies. These schools have to earn their accreditation by meeting certain criteria, helping ensure a quality education, as well as a degree or certificate that is recognized. There are thousands of U.S. schools that offer credentials recognized in almost every corner of the world.

Supporting industries, training and research

Because of the vast wealth of resources in America, the opportunities for practical training related to your field of study are vast. Most college and universities have established affiliations with employers and researchers in different fields of study, thereby creating an avenue for students to obtain hands-on and invaluable experience. Many universities even require that students obtain practical training in order to graduate. In many cases, these opportunities are not available any where else in the world.

Technology

Regardless of what degree a student chooses to pursue in school, he or she will have to use computers and other state-of-the-art technologies in order to succeed. Many universities incorporate the latest technology into their curriculum, encouraging students to obtain proficiency before they go out into the workplace. Specialized technology, such as the newest medical equipment in medical schools, allows each student to maximize their true potential and gain experience that is marketable in the real world.

Flexibility

Since the USA school system utilizes credit units and often accommodates working students, most schools offer academic programs that are flexible in nature. This means that, very often, one can choose when to attend classes, how many classes to enroll in each semester or quarter, what electives or optional classes to take, etc. An American education is very conforming to each student’s needs.

Global focus

More and more often, American colleges and universities are focusing on the global aspects of each subject, better preparing students with a worldwide view of their field. No longer can students merely focus on certain geographic areas when obtaining their academic training. Most US learning institutions have recognized this and offer a more comprehensive and global curriculum to meet these new trends.

People and culture

America is a melting pot of people from all over the world. One will find most Americans to be very hospitable, friendly, kind, generous and accepting of foreigners. Of course, there are a few exceptions, as in any country, but these are not the norm. In general, the people are funny, gregarious, innovative, resourceful, and eager to learn. These are traits that many international students adopt and take home with them.

USA Study Guide (adapted)

 

In addition, U.S. campuses embrace their students and their cultures and offer them the support you can never image: from the academic support provided by the academic advisor allocated to each student upon admission to the comprehensive support the U.S. campus will offer to international students in terms of regulations, securing housing, dealing with cultural adjustment, emotional issues, and the like.

Have we mentioned the academic support available to all students in the form of writing centers, free tutoring, the professors’office hours, career counseling, support with finding internships and more?

Little surprise then that Romanian students in the USA are well loved and highly appreciated for their academic performance and their campus enhancement contribution. And they make the best ambassadors of Romania which to their welcoming hosts is an “exotic” land full of charm and promise.