I have one of these, I bought it via the IndieGogo campaign. It works pretty well. I’m using the wifi extender module so I can’t speak to how well the bluetooth feature works (or doesn’t) but the combo buttons and fingerprint reader work well. I’d recommend disabling the auto-lock feature, which came enabled by default on mine. I found it more annoying than useful.
I bought this smart deadbolt almost one year ago and absolutely love it. It is very easy to set up. The key is a nice addition too although I use the fingerprint reader to unlock it. I also have the wife extender which allows me to control access to my home from work, etc. I researched smart deadbolts and settled on this one and I highly recommend it.