I had a ddrum snare trigger for years before buying this set. I never really had a problem with the snare trigger, so I assumed these would be fine. In reality, I often have problems. Specifically with the recorded raw output signal when I use them on the acoustic kit. That is to say that the raw signal will either be incredibly weak or non-existent (swapped cables and inputs etc to troubleshoot).
Additionally, the build quality isn't too good. For example, I went to take the lead out of one of the tom triggers and the XLR socket fell apart. It seems a screw had come out but it's impossible to screw it back in because the XLR assembly is riveted in place. Although I can say that it makes sense that the ddrum trigger housings are made of metal rather than plastic, like some other products.
I primarily use these with my acoustic to electronic conversion practice kit, so the performance is not critical.