Only down side I have noticed is that you have to reg for 2 yr min on .com's
I do like that they are based in UK like me so if I need to call for a moan it's cheaper, so far not moaning has been needed !
After having 3 or 4 really bad experiences when registering domain names with this company, i have decided not to use again. Each time i have registered a good name with them, it has been added to my account, i have been charged for the service and still the domain has been registered by someone else. Even on a serious problem, their support will not bother to email back, the interface is full of flaws and there registration service only works some of the time. I wish i had never bothered to use them in the first place as now moving all of my domains from them is going to take a lot of time. Don't think that this is just bad experiences that i have had as it seems company has an industry wide bad reputation in the UK. See www.acorndomains.co.uk before using them to see other people's view.
Great prices for .uk domains, part of a much larger internet group, Pipex who used to be a respected name many years ago. Awful web-site, badly designed. On-line support has on several occasions been very bad, you always seem to have to re-open a ticket to get the right answer from them. They often say you can't do something when you know you can.