It is VERY nice. My XDm’s sights are about useless with it screwed onto the barrel, but I can still guesstimate where to aim it pretty good.
Shooting it at the range ALWAYS strikes up conversations, and I let anyone who wants to shoot it (Even the range safety officers) to do so.
Also, a word of caution.
The piston will make it blow crap into your face. Always wear eye protection, and keep your mouth closed. And, take a potholder with you. It’ll get quite hot after a couple of magazines.