OK, maybe I'm clueless, and this has been around for a while but...
There is a great review of the Praxis suspension for the WRX/STI in the Feb/04 Grassroots Motorsports. They also have a couple from other Mags on their web site.
Really cool ride height adjustable from the driver's seat, and toe/camber changes automatically as well.(OK, this happens with normal coil overs as well, but the airbags have some other advantages) You have to change the stiffness at each corner, but big deal!
Scott, can you return your new coil overs? These are really cool! In stock at tire rack in sparks for only $3450...
Did I mention that it automatically does corner weighting as well?
http://praxissystems.com/