hi - i just returned from a great trip to south korea; fractured my wrist 2 days before return to states, so will be pithy with my one-handed typing. rented at the airport upon arrival from an efficient and helpful company. i tried renting a cell phone from a company called IN TOUCH USA (there's also an IN TOUCH GLOBAL.) before leaving USA so that i'd have a way to communicate as soon as i arrived. DARREN MOORE, manager of business development, got a raher bulky phone to me, but the instructions were not at all clear. after calling for help and getting no return call, i ended up renting a phone at INCHEON AIRPORT from S'ROAMING. despite language barrier, the staff was able to understand what i needed and explain to me exactly how to use the phone for calls/texts within/out korea. the one call i had to make to customer service was handled well, even with language problem. upon my return to states, and now speaking the same language as DARREN, i was unable to get a refund for the phone i never used, and was lambasted for not understanding the instructions by the same mr. moore who was quite nice and polite when selling me the phone. needless to say (i guess this isn't as brief as i expected it to be!) i STRONGLY suggest renting your cell phone IN south korea and never using IN TOUCH GLOBAL/USA. have fun in this interesting country; i plan on returning.