BEWARE of Lockstate Locks!! I am warning you and everyone against using the 6i locks (I'm not sure of others). I have had my lock for about a year and a half. It worked great until Lockstate basically "killed" the lock with an incorrect update they said was sent to locks around the world. After months of extreme stress I got a replacement lock and now that one is acting up, I had guests that could not access when they arrived and called me in the middle of the night extremely upset - I really didn't want my guests having a key. My guests are not happy with this and I am losing customers over the whole issue, which means I am taking a huge loss on this!
Lockstate acted like this was a one time thing with the incorrect update, but after looking at reviews online, it seems this has happened more than once. I saw someone this happened to in January 2017. Lockstate asked me to go and replace the circuit board myself - I can't because I am live 1000 miles away. They should be paying for someone to fix it for me!!
I have asked for reimbursement for the lock and as of today have not received anything. I would stay away from any of of their products! AirBnb should be ashamed of promoting a lock that has proven to be defective. Why they are partnering with them I'll never know!