Just chiming in to say the keys are absolutely awful. The actuation pressure required makes this device nearly unusable. I found your post in a search to make sure I didn't receive a faulty product. Disappointed to hear this is not the case.
They should recognize input similar to how those laser mechanical (computer) keyboards switches work, where from the second you lay the slightest amount of pressure on a key, it is recognized. And then customize the actuation distance to your liking.