I have used Moniker and still having a domain there. Control panel is absolutely unfriendly and login is sometime pretty hard, you need to guess if introducing your customer number or your email address to access. Registration of new domains isn't immediate so if you are new to this company you may feel scared seeing your domain was not registered (supposedly) but your money taken. I have no idea why they put such registration delay in the middle though. About support, as far as I remember I had never had to deal with them to date.
I have a couple of domains with Moniker The domain manager has few options, certainly GoDaddy panel has more options, but there are horror histories about them, so I take care my back
I have many domains registered at Moniker.I never had any problem.Their security and service is good as compared to Godaddy.
yes its TOO good, so that you can't even transfer out when you want too. Did you all know Moniker is now SOLD to OverSee?