About as good as you'd expect from a silicone keyboard. It's true that if you try to type like you would on a regular keyboard (especially us folks with mechanical keyboards), keystrokes will be skipped; however, that's to be expected with a folded silicone keyboard, and you can work around this problem by simply typing more deliberately and with more pressure (while not missing anything). One more thing. What I would say about these keyboards in general is that with their compactness/portability they also create another logistical problem: you can't use them on the couch as easily as you can use a laptop with a keyboard, for example. They have to be fully extended (and it takes a few seconds to snap in and out) otherwise you won't be able to type some keys etc. I got this for a Raspberry Pi so I can carry a small (but large) keyboard with it and when I have a safe spot for my keyboard this thing works great. For such a use case I would recommend this keyboard and I believe it is probably of higher quality than its competitors based on the reviews I have read about it.
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