I have one and like it well enough, but I don't think I'd buy another one.
I don't care for the smaller set of jaws, at least not for anything that needs to be held accurately from the start. Once upon a time I tried to chuck up a piece of 3/4 dowel for use as a jamb-chuck. At 3" off of the end of the jaws, the dowel was about 1/8" off center no matter what I did. The same piece of dowel in a collet chuck (purchased due to the aforementioned issue) was almost dead on center.
The larger set of jaws work well enough for holding bottle stopper or pipe blanks. I've yet to try bowls or anything larger.
In the end, it's served me well enough, and I'm not going to get rid of it, but I sort of wish I had spent a few more bucks and picked up a Nova G3. If I need to buy another chuck, it'll be a step or two above this one.