I'm a brand new server owner. No experience at all. But these guys are willing to answer every question you have and the awesome thing is they do it fast. Creating support tickets through your control panel is amazingly simple and easy.
Charlie went above and beyond with helping with TF2 plugins for the server, down to looking at the CVAR commands in the server.cfg! Definitely recommending NFO Servers to anyone who asks, much much MUCH better than gameservers.com