Like the other reply brought up, it is a well built design that has been around long enough to work most of the bugs out. But the 2 main things that make it dependable is it's a striker fired design. So instead of having an external hammer like most traditional designs, it's all internal, so there's less chance of it snagging on something or discharging from being hit (not really a problem on anything modern). And secondly, there's no "safety". There are interlocks that help prevent it from firing accidentally, but there is no lever or button that makes the pistol inoperable.

So that being said, if your use case is a pistol you can grab and fire with a minimal amount of fuss, it's very dependable for that.