It is really outstanding. If you plan on doing any amount of handheld work with your DVX this is THE way to go. You will not be disipointed.
So ya, I guess it is OK.
Aye, I have one with the zoe beebop zoom controller and it works great. It makes composing shots a lot easier and gives you more control over the camera. Although it isn't a steadycam device, it can save you major back- and shoulder pains. You DO need the zoom controller though I think, and when I can afford it I think I might want a follow focus too...