Are we talking the air or the coil version??
I've used the air one. It has a very sophisticated damping which may be of your like or not. It relies more on damping than spring rate and it feels a bit harsh on the initial part of the travel.
Rebound is heavenly.
It's pretty light and easy to set-up, but it requires several tries before getting it right.
Now the cons... The company went belly up. Only a handful of tuners and Progressive themselves touch the things. They had a terrible record for reliability... most of them related to assembly problems. If you have one that was correctly assembled, you're in heaven.... but once it craps out, your own as nobody has spares or better said, NOBODY will sell you any spares.
The hardware for the Coil one is the same for Fox, Romic, Marzocchi, Avalanche, etc.
The hardware for the Air is a oddball size NOT compatile with anything else out there. The hardware for the CCDB, DT's and Magura's shocks... looks similar but it's not the same size.
Try with Garageworksuspension.com.... or Progressive directly.
I'd look somewhere else unless you're willing to go through the trouble.