4runner, I have not had any issues with releasing the magazine accidentally. I have small hands, though. I find the Bersa to be surprisingly accurate for its size, probably because it fits my small hands so well. Its trigger is light.
My only complaint is it was (still is) tricky - I'll be more precise: exceptionally frustrating to reassemble the first time. I probably burned several hundred calories just in obscenities. But, now, I have found the correct rearward slide pressure and wiggle combination to get it back together without the need for cussing.
It also jammed frequently with hollow points during the first 250ish rounds. No malfunctions at all in the last 250ish, including HP ammo. I trust it well enough to CCW. My second complaint, I guess.
On a roll with criticism: The Bersa is more sensitive than other autos to thumb pressure on the slide release. The slide never locked until I realized what I was doing. Hey, Bersa helped me correct a bad grip habit!
As mentioned before, additional mags are close to $50.
I am pleased with it. It is a great little pistol. My wife called it "cute". The price is great also - usually $400 or just under.