I owned a flippac for about 5 years (10 years ago). Good quality, very functional. no problems with the tent folding. Only problem was the torsion bar that assists in opening/closing broke. Dealer got me a replacement.
If you get one, get the optional rain fly... . will be very useful in WA.
One thing to consider..... if the tent is wet when you are ready to foldup and go, you are going to have a very damp tent when you reopen it... ... I always made sure that I opened it soon to let it air dry before storage.
The queen size bed over the truck cab was super comfortable..... my wife and I slept there... . put the 2 boys in the bed (carpet kit). They were happy and we had a little bit of privacy.
It works great in hot weather... . lots of windows (netted) for ventilation.
The fiberglass construction was very heavy duty.
Not sure what they cost now..... probably a little pricey..... but worth it.