I have two dedicated servers with Dreamhost plus another bunch of sites in the shared environment, and while they might not be the most reliable in terms of uptime, the customer care is generally very good (you won't receive copy & paste responses that don't answer your questions), and this means I'm inclined to forgive them for hosting that is less-than-100% solid. It's probably not the best place for mission-critical stuff, but it's cheap and cheerful and undoubted value-for-money.