I believe they don't take NEW US players, but if you had an account, you can still play there. Not sure, because US is still listed on the New Signups page??
I played there for about 18 years. Real good book, unique software, sometimes unique lines. It became a real hassle to get money out, Only via some debit card, so I didn't reload this year.
They had the best Customer Service of any book I ever played at. Very old school book. Used to have great contests and parlay card/teaser card options, but pretty much now as basic as you can get.