My wife and I both have the Bersa Thunder .380 Duo Tone. I love it for concealed carry. It goes with me everywhere I legally can go with it. It fits nice in shoulder, IWB, belt, fanny pack, or ankle holster and provides nice balance between weight, size, and power.
I also have a HiPoint C-9 and 45 ACP. I do carry the C-9 ocassionally in a shoulder holster but it's a little heavy on the belt and too big for the ankle holster.
I saw a few note the difference in ammo. 9 MM ammo does cost less. I was able to get a 1000 rounds of .380 ACP at about 28 cents a round for CCI Blazer FMJ. But that's about as good as it can get for good ammo. You can get 9mm cheaper.
I have been considering looking at the Bersa Thunder 9MM. You may want to consider the compact 9MM handguns just simply based upon cost of ammo. Otherwise, a Bersa Thunder .380 was my pick for concealed carry.
My wife is wanting to add the Ruger LCP to her options but we haven't got it yet. I think she'll be disappointed once she actually has because while it might be great for concealment and light weight, it's really too small in my opinion for shooting on a regular basis and develop some reliable shooting habits with it.