You get a virtual server, root access, pretty much like any other hosting option for openacs but half the price.
You're limited to 65MB of memory per process on the lowest pricing option so obviously you're not going to be hosting huge sites on it but for $15/m this is by far the closest I have seen to anyone matching the kind of pricing you see for Apache shared hosting. And obviously a virtual server is so much better than shared apache, there's no comparison.
I signed up Saturday. The last time I used anything BSD-related was SunOS in 94 -- goldvision is a freebsd shop -- so it's been a while. This is to say that I've sent several mails to firstname.lastname@example.org, including one before I signed up. The longest wait time for a reply was _maybe_ 10 minutes. That's including one Sunday and one late at night.
Frankly I'm pretty impressed so far.