I've been there in 2005, which was the first year they split after the Bucheon city hall and the president of the festival until 2004 got into a fight. I think it was in July at the time, both festivals, the Puchon Fantastic and the first Real Fantastic Fest (which was created by the fired president). I can't say much about Bucheon, it's a suburb, pretty much. But I guess as a participant they might have some events and parties for you and such so it shouldn't be too bad. But as a non-Korean speaking foreigner, it's all kinda dull, unless they relocated the venues (used to be in the Songnae area, dunno these days). At least you're a short train ride away (about an hour) from Seoul so you can easily go and see stuff on your free time.

I just checked the site, it's not too specific but it does seem like it's in the same area as before, maybe a few venues have changed but they do mention Boksagol Culture Center and Songnae Stn which I know of. Strangely enough my cousin moved to teach in Korea and ended living in that area, which was pretty weird to her because it's such a typical suburb and she couldn't figure out why I knew the area and my way around. There's plenty of places to go out for a few drinks and eating in the area. Not too sure about shopping but I doubt there's anything great around. But if I was alone I'd rather take the train into Seoul and explore. Enjoy!