Pair is perhaps the most reliable hosting provider in existance. After hosting sites at several places, Pair Pair is by far my favorite. No company is perfact. They are more expensive then many and little things such as having to pay an extra dollar per month for subdomains when they are already priced at a premium level is a small annoyance. But when you need your site to work consistantly and you are willing to pay for that reliability, nobody does it better.