I looked at this at Photo East, and thought it a great stitching option.
the wonderful thing is that you have a ton of stitch movements, way more than any of the pancake Alpa's/ Cambo's, etc,
with the P65+ you can cover virtually full 4x5" in 4 shots.
and ... you can use your own LF lenses, mounted to the cheap lens board just like we used to in film days.
no need to buy heavily marked up lenses by Alpa or Cambo, when you can get to reuse a full range of LF glass. including longer lenses - like 135's and above, with no problems, at far lower prices. no need for each to be in its own helical mount, no need to pay Alpa or Cambo a fortune for each option in your kit.
against that - it is a LOT bigger than a pancake type, more unwieldy, prone to wind etc, and that is an issue on location.