I own the Bersa .380 and LOVE IT!
Bought one for the missus some time ago, and we both enjoyed it so much that I bought one for me. I carry it as my backup, but feel completely comfortable when it is the only firearm I carry.
Easily concealable, simple controls and fairly good accuracy make it a great working gun. We all have shelf queens you shoot once in a blue moon, but the Bersa .380 Thunder is just like a work truck; dependable and reliable.
I have fed mine inexpensive Wolf ball ammo, expensive "self defense rounds" and about every .380 round in between. Gun and magazines generally function without a hiccup.
Please note that I have NO experience with any Bersa beyond the .380 Thunder. Go to Gunblast.com and read their review ( in the archives ). That was the article that initially convinced me to pick one up for the little woman.