I think there may have been a slight misunderstanding when it came to the check in, perhaps due to the language barrier or translation obtained (communications were all in German from them). We allow for check in when we are home only, and though this is most of the time, we are not here 24/7, thus I let them know we would not be available from 3:15-5:45 on this particular day. They seemed ok with this. We have no problem with people being alone in the house after they have checked in; I think they may have misunderstood when my husband said he was going to be leaving and no one would be back until 5:45pm. I am sorry for any misunderstandings and sad to see the ratings reflecting this, as we did inform them that we do not speak any German when they made the reservation.