Never, had a problem in years of using Schlage zwave locks. That function has been rock solid, Unlock, Jam, etc. Default mode upon first arrival is Owner/Away. Everything would work for the guests when they arrive in that mode anyway, they really wouldn't notice a difference. I am notified of human activity upon their arrival through Pushover on my phone and I can set the modes remotely should things not work, but as I say, it's never had to come to that. It's only basic stuff. For instance the guests stay is usually 5-10 nights, I am aware of check in and check out day, and keep an eye on things. Upon first change of mode from Owner/Away to Guest/Home, if around dusk all the main lights turn on to welcome you. I have also have modes for housekeeper and handyman. Guest/Away mode and Owner/Away mode are both automated security lighting at night and a few other things. 95% of the building scenes and functions are shared through all modes