Definitely all hype - and I say that speaking as the owner of one. Not as good as a Sheridan, let alone a Sharp.
Their value as collectors' items far exceeds their intrinsic value as a shooting machine, because they (I guess along with HW35 Vixens) started off the whole "custom air rifle" thing. In other words, buy one as a piece of history if you must, but for no other reason.
Adrian