I like it pretty well, I'd say. I do have some issues with it: It seems to produce more power than the display indicates (must be that pulse width modulation that everyone's barking about); the fire button is slowly turning black (right now it looks like a black and chrome nebula); and with all the electronics up top (where I guess they have to go), it's kinda long as hell.

Despite all that, I'm really liking it for my DID, maybe simply because it's the only thing I have right now that will tell me the resistance of whatever's screwed onto it.
Honestly, I have a hard time recommending or not recommending it. Besides my lil' eGo Twists, it's my first variable voltage device, but it's hitting harder at 3 volts than a Twist at 4 volts (yes, even on a 2.5 ohm DID coil), and considering that the Twist uses the same technology as the ProVari to adjust voltage (if I remember correctly)... I don't know, it's something to think about.
I'd say hold out, personally, maybe. I can't remember, do you have any variable voltage devices?