If you're going to carry a .25, I think the 950 is the best one. I used to carry one every time I set foot outside the house. It functioned flawlessly, and I could carry it in my front pant pocket w/o even noticing it was there.
That said, I have real doubts about its effectiveness. I think the only sensible tactic with a weapon like this is to dump all 9 rounds in the BG's throat. When I thought about those few times that I felt I might have to draw and shoot someone, I realized that there was a pretty good chance that the 950 wouldn't have carried the juice to put down everyone that would have needed to be put down.
So the 950 lives in my safe. I really like it; it's a neat little gun. When I carry a gun, though, it's something that can hit harder - which means it's larger and heavier, and more of a pain to carry. So I don't carry every time I set foot outside the house anymore.
I fear the "usefulness of mousegun vs. usefulness of heavy object" debate is not likely to ever be resolved. Resolve it however you feel is appropriate, and I pray you'll never be in a situation where you'll need to use either one.