I've never seen one of these before, but it looks like it can get into a few places a standard c-squeezer can't. Unless it takes standard size dies (like the ones that go in the c-frame dimpler or a CP214 squeezer, i believe it's .187), i'd avoid it, unless you can find whatever flavor of dies it takes.
 
Yoke depth looks a little shallow so, unless you can track a supply of yokes for this thing, you will be limited to edge rivets and the ocassional longeron rivet. As stated above, finding dies may be a challenge unless it uses a standard size.

Having said that, how wrong can you go if you get it at the current bid of $10. Your average new pneumatic squeezer is several hundred dollars (forget what I paid for mine but it was substantial).