I have an old Crosman Kimar 92 that I have refurbished, apart from the the hopeless co2 piercing mechanism that broke, it is superior to the Umarex Beretta 84fs blowback I also have.
Everything seems just that bit more 'sturdy' and although it isn't blowback, it makes a nice bang and gives just the hint of a kick.
The 84fs suffered a firing pin 'spire-nut' failure and shot the pin out of the back of the slide, luckily I was only pointing it at the floor at the time or it could have had my eye out!
No spares of course and a useless response from Umarex. I was able to find the pin and an alternative spire-nut, so it works again, but as noted above, current build quality of the latest offerings does not seem worth the outlay.