I have not heard much about them, so I can't comment on their service. But the free server "management" is not a big deal, they are really just trying to make it look like you get a lot of great stuff for free.
In most instances, dedicated server control panels and server admin packages come with these things, such as service monitors, system monitors, etc. They are built right in and you can check them at any time.
I personally use cPanel/WHM and infact, on top of having these service and system monitors, you can even set them up to email or page you when resources are critical or a service fails.
Also, these control panels typically have built in updating features, and they will update mysql, php, apache modules, etc all automatically as well.
From looking at their FAQ, you get cPanel on linux machines, but no control panel at all for windows machines. So for the inexperienced, they may have some added monitoring stuff for the windows machine, but if you get cpanel with linux, basically everything they list is built in.
The only thing I am wondering about is the O/S updates. I can't immagine them doing linux updates for free.. windows yes, that is easy. But when you have to update the kernal or something, that is a bit difficult, and almost all providers I've seen, even higher end providers charge a fee to do kernal upgrades.
Either way, I hope that information helps you in your decision!