Great Service. No mistakes.
Assuming that you are buying MANY registrations, the price is fine. They're one of the few registrars I've had whose databases never got screwed up, and who never cost me money or a lost expired domain, or other aggravation. Their stuff works well. Service is good and personal via e-mail. I'm a satisfied customer for years, and with over 700 names there.
I am concerned, however, by rumors that they are being assumed by MyDomain.com. The latter are spamming scumbuckets, and with poor support history with me. I won't do business with them. So if the rumor is true, I will transfer all my names out.