I think the market is desperately wanting a single stack 9 or 40 the size of this and the LC9/Shield, with no safety. I think most were hoping the G42 was going to be that answer and it's now looking like that is not going to happen. I'm very excited by this, I never messed with the old Model 51, but I have heard good things about it. I'm debating one for a early b'day present to myself!