I have until recently been a long term user of 5 Quid Host and its sister site TentaHost. Support is good, and up until recently were reliable. A few days ago, the server on which my sites were went down with a hard disk failure. While they were restoring backups, etc. my sites were down for approx. 2 days. At the end of the day, you get what you pay for. If you want 100% uptime for valuable sites, I personally would never risk this host again.