900 rounds so far. No major issues.
One thing, after about 150 rounds of a mix of Korean and Swiss ammo, I'll have to use the double strike feature to get the primer to ignite. After this happened twice, I used a q-tip to dry wipe the firing pin and it solves the issue. Firing pin is most likely rough from machining and has contaminants sticking to it, effectively cushioning the impact of the firing pin on the primer.
As stated by many others, this isn't designed to be shot all day. It's a true pocket carry design engineered for close quarters defense. However, mine has proven to be reliable enough, unless I need to fire 150 rounds at a time, in which case I'd rather be using a cannon.
First I would make sure your gun is clean. If it is, completely disassemble it and clean every part. Lightly polish with 2k-4k grit sandpaper any critical component that has a rough surface to it. The idea is only to smooth the surface but not remove an unnecessary amount of material. I've found this to increase the accuracy and reliability of my BG tremendously. Upon reassembly, very lightly lube anything that will be moving. Keep in mind gunpowder, dust, and other contaminants will stick to nearly all oils and greases. Moderately lube the slide rails, barrel, and take down pin.
Disassemble your magazines, clean them, and inspect them for defects.
It's really not a lot of work and can be done in less than an hour with the proper tools, and less than two hours without.