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In general, this case and keyboard work as expected. A few issues, though... There is no light to tell remind you that the keyboard is on, so I have run down the battery a number of times because I was not always careful to physically turn it off. An electronic timeout after a period of non-use would be ideal.
I have had some problems with runaway repeating characters a couple of times, sort of like a stuck key effect (though the key does not actually appear to be physically stuck). I cannot say with certainty that this is the keyboard rather than the bluetooth driver on my Asus Windows tablet, or perhaps the application I was using.
The case and keyboard add substantial weight and thickness to the tablet. You sort of have to accept that with better made cases.
The clips on the corners often move from the corner when the case is carried in a bag, briefcase, luggage, etc. I can't remember a time when more than one of clips changed position, so there has never been any danger of the tablet coming loose. Sliding the clip back to the corner is quick and easy, but it is a minor annoyance.
The keys are pretty small for someone like myself with large hands. Technically it is possible for me to touch-type on the keyboard, but between the key size and odd key placement, I often find myself doing the old hunt-and-peck instead. It is still better than the on-screen keyboard for email and other actual writing, but it is no match for a real, full-size keyboard. Given the reasonable price, I would probably buy it again if there were no reasonable alternatives.