I've played there alot. IMO, the GBP tables are softer by far than the USD tables. I'd recommend you play those if they are running, as many of the players will be fish from UK sports betting sites such as William Hill. I have seen some great $100 games too, although I'm not rolled to sit in them at the moment.

Also, it's worth checking out the Pot Limit tables. They don't run often, but when they do they are some of the loosest games I have seen.