Hi,
I am not sure what you have heard but, I have taught for the GEPIK program and it would be quite similar to the EPIK program.
Teaching in Korea is amazing! However if you are not used to working and do not have a student loan to consider paying off you may find working 9 to 5 difficult. Some teachers have an amazing experience and some complain the whole year. I think it is all in the way you look at it. Rule number 1 if you don't like working with kids or young adults 5 days of the week then this job is not for you. Rule #2 if you have trouble working with people and being flexible this job is not for you. Rule # 3 if you are not familiar with conducting yourself professionally then again this job is not for you. But if you like great food, putting your best foot forward, being reasonable, appreciating the foreign experience and being able to travel in South East Asia on your holidays then give it some consideration.