I agree that cultural differences can be an issue. As long as you have both eyes open and know what is important to you and how comfortable you are with making major changes in your life that come with getting married, which in itself is a major change. Personally, I prefer to stick with people whose backgrounds are similar to mine; it makes adjustment to married life that much easier.
My question to the person who started this thread: What is it about this young man that makes you think he is right for you? Are you partly intrigued by his background? Some people davka look for someone different. And remember whatever you hear about or read on paper doesn’t always translate to reality. Hatzlacha.