I bought one used in 2008. I was trying to replace (on the cheap) a PPK/S I'd let go years earlier since I was going to start carrying again.
I took the Thunder to the range several times, and could not get it to malfunction, despite multiple tactics. I tried limp-wristing, mixing up old and new ammunition in the mags, mixing up ammo types in the mags, and going hundreds of rounds between cleanings. I found this gun to be an excellent piece of equipment, and went on to carry it. It always shot where I expected it to, and I found the sights to be clean and easily picked up. I sourced another OEM magazine at a gun show after hearing from many people that those are the ones to be trusted the most.
I've often said that the T380 was a well-kept secret in .380-caliber value in a defensive handgun. By now, it has its share of competitors, such as the Ruger LC380 and the Shield-EZ. But, for us old-school shooters who like and all-metal gun and can run the DA/SA mechanism, the Bersa is one fine choice. I like it enough that, when I was in the market for a rimfire DA/SA shooter, I passed on the polymer-framed Ruger SR22 for a Bersa Thunder 22, though I have to admit I've only had that one out once and it didn't do all that well with the ammunition I had with me at the time.
I still have the T380, but I don't carry it anymore simple because I've taken to carrying lighter-weight 9mm handguns that are easier to carry and more powerful. However, they're not as enjoyable on the range to me.