Wes, trust me, it ain't!
Sending a lethal slug downrange with no more sound than a Daisy Red Rider is something to be experienced.
I have a can in the works now that I'll be swapping between a few guns. I look forward to working up .308 subsonics for hog hunting. Without the noise, the hogs don't scatter, assuming the one that takes the round drops on the spot and doesn't kick and squeal.
Suppressors are great fun, but Wes is right, they take some work to get, and people will bug you when you shoot with them; and if you don't follow the law, you will get a 1-way ticket to federal, "pound me in the a$$" penetentiary.
Here's a pic of "ol' girl on a Ruger pistol. It is, what I can only call, sweet n' creamy goodness.
Swift. Silent. Deadly.