I went to SEASECS twice as an undergrad., and I found it an incredibly rewarding experience each time. For me, the best part was seeing the same folks both years and starting to form friendships.
I think something to keep in mind - especially for regional / college level conferences - is the importance and fun of meeting others in your field. At the national level, I suppose your eye is more on the market (though, this is not to say this isn't the case at the regional level, of course).
That said, please PM me if you have any specific questions/concerns, and ill do my best to help.
ETA: I presented both times.