S. Korea is a great place to visit, my wife is from Seoul and she goes home every couple of years. It is wall to wall traffic and people in Seoul, lots of neet stuff to see, especially Panmunjom (DMZ), there a scheduled tourist trips, you can see the N. Korean soldiers and learn a lot of why we are still there. S. Korea is nothing like it was even 10 years ago. It is not as inexpensive as some other Asian countries, but not as bad as Tokyo. I am sure you will enjoy the trip, lots of Koreans speak English, most signs are in both Korean & English.