Lock works great, but the app that supports it is terrible.  Initially, the app worked fantastic, but has an issue with the bluetooth pairing.  Normally, this wouldn't be an issue except that all lock firmware updates HAVE to be through bluetooth.  No bluetooth paired, no updates.  Also, the lock history no longer shows any lock/unlock events.  Wish I would have bought a different brand.  Furthermore, the process to set up your account in the app is ridiculously long.  It requires an email address, phone number, password, two separate confirmation codes, three security questions, and a final verification step before you can actually interact with the lock.