Things I liked: This is a great value for the money. It works great in concealing even a real weapon. A holster for a real gun costs about 100 to 200 US dollars.
Things I would have changed: I would add an 'X' strap on the back like you see the police shoulder holsters have. The reason I say this, is because depending on how you have the holster set up, the weight of the gun could shift this foward.
What others should know: Overall, this thing does it's job in concealing a weapon. It's great for use with real guns, and real clips. Everything fits nicely, and it's adjustable to any body type. I walked out in public with this on and no one could tell. I recommend a jacket that has some body to it, as it would show a small strange looking bump if you had something like a blazer on. Although, I'm sure that's true with the police issue as well. I have not tried a tuxedo because I do not have one. Overall, great buy. I am very pleased with it.