Some people get way too hung up on the numbers side of it. In the short, it's the same length as a 1911 with a threaded barrel. The numbers in the long are just about the same as an Octane 45 or Omega 9K. The long sounds like a traditionally suppressed pistol. The short it's "good enough" in terms of sound.
The entire gun is about the same length as most traditional pistol suppressors without a host--- which is the point of the whole thing. It's like building a 10.5" 5.56 and not being happy because it doesn't have the same velocity as an 18" rifle. There are sacrifices.
It's a really quiet pistol, not a really quiet suppressor that happens to be a pistol as well. If you're looking for the absolute most quiet suppressor out there, it's probably not for you. If you're looking for a holster-able suppressed pistol, or something that fits in a glovebox or nightstand drawer, it works very well. It's what I carry as a sidearm out hunting, and does very well for that.
I'm not really shy about saying I'm snobby about triggers... Gsissele gets money for almost every AR I put together. My take on the trigger is that it's a perfectly serviceable striker-fired polymer pistol trigger. Is it great? --- No. Does it do the job? Yes, absolutely.
If that trigger was in a rifle I would be pretty unhappy. It's more than sufficient to shoot a pistol at reasonable pistol distances.
The ones I've shot have been reliable though, pull the trigger and they go bang.