Go for what you like but the LC9 has been a good carry gun for me including the summer when wearing shorts though I prefer the LCP for that. The LC9 is quite easy to conceal, I carry it most of the time IWB at the appendix position. That works for me because the holster (Ace Case tuckable) is comfortable standing, sitting, and driving a vehicle, with the gun very easy to draw.
As for the safety on the pistol, it's not needed but apparently was put on the gun to make it possible to sell in some states. There's no need for it, it has the same action as the LCP, DAO with a long pull like a revolver in DA. I've always carried my LC9 with complete confidence sans safety. I agree it's a bit large for pocket carry but though I orignally carried my LCP in a DiSantis Nemesis pocket holster over time I've become convinced that's a poor method. Basically because it's harder to get the pistol out of a pocket not to mention it takes away a pocket on your strong side that you may want for change, keys, pocket knife or whatever. I no longer carry the LCP that way but use a DiSantis Summer Heat holster. It works much better than pocket carry and is much more discreet.
The LC9 is not as small as some compact 9mms but to me it's about as small and light as a real shootable nine can be. It has well designed recoil response, you can shoot 50-100rds at a range session comfortably and accurately. I regularly shoot and hit at pop cans at 25yds with it. Which is more accuracy than really needed for self defense but gives me confidence in the pistol.