Itaewon has got more bars and restaurants than you can visit! With a bustling nightlife that seems to never stop (I've driven past people staggering out of bars at 5 AM!), and a plethora of authentic international cuisine, Itaewon gives a great change of pace in the heart of Seoul. Traditional Korean restaurants are great, but, especially if you are a vegetarian, culinary variety is a great thing and that's what you will find in Itaewon. Be sure to look up (and down!) while you roam the streets; there are hidden gems everywhere! They really have a skill at using every cm of space available here. There's quite a bit of shopping to do in Itaewon, too.
Word of advice if you are planning to stay in the area... Find a place that you won't mind walking to/from. There are some pretty steep hills and trekking back up to your room at the end of a long night of eating and drinking can be tough.
If you own or manage Itaewon, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.