I can tell you about the LC9... I picked one up several months ago. I live in WI so haven't had the opportunity to CC it yet, but have had it out at the range a number of times. My impressions, in no particular order:
First, it strikes me as a small, compact, easy-to-conceal pistol. It's a bit large for practical pocket carry, but not by much. I suppose if you were a big man or had baggy cargo pants, you could get away with it. But a normal guy with jeans or khakis should find a different carry option, IMO. Next, its polymer grip feels a little thin in your hand, especially at the backstrap. You would think that would make it painful to shoot, but the recoil is actually very manageable. Takedown is similar to the Kel-Tecs; you just punch out a crosspin and the slide separates from the grip frame as you would expect.
The three-dot sights are pretty good for a compact, sub-$400 piece, and the rear sight is adjustable for windage (not sure about elevation, though). The controls include a tiny slide release lever and a small thumb safety on the left side of the slide. Both are very tight, and even after several hundred rounds I still cannot manually close the slide using the lever (I just "slingshot" the slide back to load the pistol). The slide does lock back after the last round is fired, and that's always worked reliably for me. The magazine was also very tight, and it took a couple of range sessions before I could load it to its full capacity.
So how does it shoot? Well, the trigger is horrible... again very similar to the P3AT. I don't have a trigger gauge, but I doubt it's less than 10 pounds and it has a looooong pull. There's also an unusually high amount of stacking just before the trigger breaks. Fortunately, the stacking is predictable and with some practice you can get used to it. Having said that, I'm not sure a match trigger is appropriate for this type of pistol - and I certainly don't expect a "glass rod" at this price point. Once you get used to the trigger, the accuracy is surprisingly good. I am able to keep all 7 rounds within a 6" Shoot-N-See offhand at 15 yards. It's not as accurate as a compact fixed-barrel pistol like the Makarov, but again it's quite good for what it is. As I mentioned before, the recoil is very manageable and this is aided by the pinkie extension on the magazine which allows a true three-fingered grip. Reliability has been excellent; I have never had a jam, FTF, or FTE with either hardball or hollow points.
All in all, I think it's a good value for the money and you could do far worse for a compact, affordable CC piece.