They've probably already abandoned their site, but I had a 25GHS contract with them that I had paid with BTC and I argued round and round with whoever the person was that was answering the sales@bitcominers.com emails. I guess they finally got tired of me bitching at them and they gave me back my BTC..

I was about to drop $2300 on a 3 month 1THS contract but hesitated and only got the 25GHS for starters.. Glad I didn't give them $2300..