“Annoying aspect of these tools...”
I didn't buy this set, but I borrowed it from my brother to install shoe molding. I read the instructions...what guy does that, right?...because I didn't want to break it. I bought the correct nails and set the PSI on my air compressor to what was recommended.
The first few nails went way too deep. Beginner's error. I had to keep adjusting the air compressor (a Craftsman) until I got the right depth. The major annoyance I had with the gun that I used was that every other time I pulled the trigger, the sleeve holding the nails would pop out. Even after I adjusted the pressure. Sometimes the nails would fly all over the room...pretty dangerous.
The other annoying thing was that little red plastic piece that appears to be there so you won't dent your wood...that's a joke. No matter what pressure I used, I got a mark. I guess that's why Sears also sells wood filler.
On the positive, it was easy to handle with little kickback.