I've never once regretted my decision to teach with EPiK. However, there are many factors at play and each teacher's experience is very different from the next. Orientation was informative and helpful but incredibly tiring. There was no WiFi which is kind of a big deal when you've just moved your whole life to the other side of the world. There was also never time to leave orientation to grab a real cup of coffee at a place that did have WiFi. It was non-stop lectures and workshops for 12 hours a day for 6 days.
My apartment and neighborhood was great. I really can't say anything bad about my living situation. Public transportation was very close to my apartment, the neighborhood packed with restaurants, stores, bars, pharmacies, cafes-- you name it!
My biggest complaint about EPiK is that there is very little accountability regarding co-teachers. Some are very helpful, value their native teachers, go out of their way to include them at school functions and strive to cultivate a strong co-teaching relationship from which the students greatly benefit. Others will provide little to no assistance even though that is part of their job (ie: setting up a bank account, going to the immigration office, etc.) and not put any effort into actually co-teaching. This is all a roll of the dice and it can be wonderful or downright dreadful.