I stayed with my family at the given property between 6-8 of October.
The instructions we had prior arrival to the property included the details on how to use the keypad lock and the backup box. It didn't include any instructions about the deadbolt lock though.
On 7th October we went out of the apartment from the back door (it's on the ground floor) and left the deadbolt locked, as I knew the backup box contains the key to unlock the front door. The keys didn't match the deadbolt lock nor the backdoor. Hence, we got stuck out of the house.
I called Susan (the landlord) and asked for her assistance. She said she's not there, but advised to call a lock picker and said that if it's my mistake - i'll pay for it, otherwise she'll reimburse me. After the lock picker opened the door, we called Susan and he explained that the keys didn't match. Susan and I spoke a few minutes later and she said she's going to reimburse me for the fee I paid - $70.
After a while I asked why she didn't reimburse me and she ignored my messages. In the second attempt she said she's going to reimburse me at the end of the month, but again, she didn't reimburse me.
Additionally, her language was extremely unpleasant (getting into her expense calculations and blaming me).
Bottom line - I would recommend to be careful of the people you make business with. If I had the chance to read such review before I rented the property, I would run away from this deal.