UB recently merged with AP to form Cereus, creating one of the largest US friendly networks available. Many people ignore UB in favor of alternate US poker sites thanks to a scandal that took place a couple years back, but UB has left that in the past and is now working to re-establish themselves.

If you are a Mac user, there are plenty of options for you. UB has supported a Flash version of their site for quite a long time. For a downloadable program, Ultimate Bet for Mac is your other option.

UB is also known for their soft games for both cash and tournaments. They cannot compete with the traffic on the Full Tilt Poker download, but they still do quite well. For in depth info regarding UB, please take a look at the entries on this site. Also come back regularly because I update with new content quite often :)