UPDATE!
Well, i got back to US and promptly messed up my rib, so i'm sitting here updating this thread wishing i was training instead lol
I had an awesome experience in Korea, and bringing my GI and training there was probably the best part, as mentioned previously i have not trained in another country before, so i had no idea what was coming, which is what made it so exciting.
I took advice here and Went to John Frankl's school (Itaewon BJJ) twice during my stay. The school was fairly small and was just a room in a big building. When i first got there, the doors were open, the lights were off and some Korean dude was just taking a big nap right on the mat. The owner, DK (a brown belt), showed up soon after (he spoke English pretty well!, so there was not much of a communication barrier). I asked about mat fee (which was 20,000 won, or 20 bucks) and after a brief conversation about my experience level the class started.
The curriculum, and the whole class really, was very similar to class structure in US. We warmed up, drilled some sweeps from butterfly and started open mat. I got some technical rolls in. It was new school, so i definitely wasn't going to tryhard. Plus jet lag was a real killer the first time i went, the second time i felt a little more like myself and got some subs in. I got subbed as well, twice, by DK. Over all everyone was really technical and absolutely worthy of their belt levels (there was a broad spectrum of colored belts there, excluding black belts, as the school is fairly new).
After the class i found out it was DK's birthday, they brought out a cake and gave everyone spoons and we sat in the middle of the mat picking at the cake. the experience was very communal as opposed to little slices and individual plates we are used to here.
Probably the best feeling was walking from the gym back to the apartment, it was late at night and Itaewon is a big party place with a lot of nightlife. It was interesting seeing everyone party it up while i was tired from training, still riding the high i got from exercise. I stopped by a few convenience stores on the way back (7-11's are EVERYWHERE) for a Gatorade/coconut water, and took the subway back. The public transport there is excellent and the taxis are very affordable as well. I was not used to spending 30 minutes commuting to the gym and back using public transport. Somehow it was not tedious, but added to the experience.
Of course i have pictures!
P.S. sorry for my amateur story telling skills, I haven't written anything extensive in about... 7 years LOL