Smart locks for long term rentals?

[Frank Rizzo]

I own a couple of long term rental properties 60-90 minutes from where I live. I don't use a management company and am trying to create systems to run my business without driving back and forth all the time. I am thinking about putting in smart locks with key pad entry. Since I am not paying tenant wifi, I would have to rely on the blue tooth compatible locks. Does anyone have experience with this type of setup?  or can I have the tenant hookup to their wifi and trust them with master access to erase codes after contractors are finished (I will always have a master key)? Also are they worth the cost ? 

Thanks?