cash traffic is decent; hard to assemble an SnG on the upper end though. the only freerolls are if you have points, which you get by playing with cash. since they're predominantly a sportsbook, it's pretty soft, a lot of jocks playing around with profits from a game wager with no idea how to play.
software is pretty horrible, really glitchy.
cashing out, depends on who you ask. i've only cashed out twice, took about two weeks. there are some rumors of getting a bad check the first time and having to deal with customer service.
yes, money on bodog transferred to bovada. i believe bovada is solely us-facing at this point, but i'm not sure.