Ive been to S.Korea 2 years ago. Went to Jeju(Cheju) Island too. Yeap, language is definitely a big headache there. No 1 speaks english, but mandarin would help a little as some of them would understand a tiny bit. Seoul's traffic is as bad as KL. 99% of vehicles are Hyundai, Kia, Daewoo . Only seen a few MerCs and Peugeots.

Food wise, it's all kimchi, porridges, BBQ style rice+pork/beef. Kinda got sick of it after a few times. Went to Mt. Sorak, and had a little hike. Nice view from the top. Been to Everland and An Indoor Theme Park (can't remember the name) . What's good about them is, their Toilets Are Super CLean, even at rural areas. Also, not to forget, the Nude sauna Bath. U hav to try, i was a bit 'shy' as it's not our custom, but ppl there were used to it.

Overall, nice trip. U should see how advance is their mindset and thinking compared to other countries. Chicks are definitely prettier overall, compared to Malaysians