Stayed 3 nights, all was great except for our last night. Got back to hotel from a late dinner, and neither of the key cards worked. We notified the front desk, was asked if anyone was in the room that might have locked the secondary latch. Of course there wasn’t. Anyway the receptionist deduced that it was probably a battery issue, so he contacted maintenance. After a lengthy wait we were told that we could have another room for the night, because the main maintenance person wouldn’t be in until morning. We declined. After another lengthy wait, someone came up, but had the wrong tool. Then more waiting, finally the correct tool and batteries were changed, the door opened. The battery issue seems quite common, but their overnight maintenance was not adequately prepared.