Purse KeepKey in many respects resembles its predecessor, the best wallet. This can be clearly seen in the device initialization process. For those who have already used best wallet earlier, to work with KeepKey not be too difficult.
There is no strangeness in the fact that these two models are so similar. After all, they are based on the same standards. Both wallets have a single store BIP32 and BIP44.
Purse KeepKey has firmware that is freely available. All those who wish to somehow check it can always do it. Perhaps even modify it. The price of these two devices also coincides at the moment. That allows wishing to choose among them the best on the quality and not to overpay for it.