A professional web site hosting provider must guarantee you a high level of uptime.
It means that your website will always be accessible to your clients. A reliable web hosting services provider must do his best to avoid any malfunctions.
Well, GTHost.com
vps host does everything it promises and more, and that's a rarity these days.
I tell them with confidence that they'll be just as satisfied as I am. In my opinion they're the best kept secret for quality, reliable hosting.
The OS can be reinstalled at any time in your personal account, it takes 10–15 minutes, you can install it as many times as you like.