Kat:
Just remember, everyone is different! I have had troubles "around" my pouch, if that makes sense; the pouch itself is totally healthy. I've had problems with adhesions (2 surgeries), my gall bladder (another surgery), and fistulas (five surgeries) -- any of which could have been caused by the surgeries (or the IBD or any other random reason), but not the pouch itself. Does that make sense? The pouch is great!
Again, however, everyone is different. There are others on this site who have had massive problems with their pouches; chronic pouchitis and all sorts of things. These things are a chance one takes when getting this procedure done. But do remember that this is also a support site, so people do come here for support with problems and issues. And that means that there are other people who don't come here because things are either just fine or great and they don't need support! (If the statistics are to be believed, they make up the majority of J pouchers.)
For me, I don't regret the J pouch one bit. That first surgery literally saved my life, and other than a couple of (fairly minor) bouts of pouchitis, life with the pouch has been fine. Fistulas, on the other hand... Bleah.
Gin