Overview: 100% uptime is a false claim, domain name cost has gone up by at least $2 every year, website administration does not work, and customer service is a joke. I highly suggest you find another company.
I have used NamesAreCheap, an RBConnect, Inc. Company, for several years to manage my domains. I recently switched hosting providers and used the bulk management tool to change DNS servers for all my domains on 2/3/2011 using their website administration. All servers were successfully changed and I confirmed the domains were pointing to my new name servers. On 2/5/2011, I noticed my websites had gone down. I contacted my hosting company and verified with their educated technical support the problem was with my registrar (NamesAreCheap). I attempted to log into my NamesAreCheap account however when I tried to use the admin functions to change my DNS, the website was broken and returning error messages. I phoned NamesAreCheap technical support to address the problem, and the support attendant, whom claimed his name was "Ron" was quite rude and continually cut me off while I was trying to explain the issue. He then walked me through using an alternate control panel which updated my servers, and when I tried to inquire about why my service failed in the first place he refused to answer me. When I requested to speak with a manager, he claimed to be the CEO and said there was no one above him whom I could speak with. After failing to get any information or help from Customer Service, I called back several times only to be routed to voicemail.