The instructions to get in the main door were not clear to me given the login screen I was faced with, and, while people let us inside, we couldn't acess the floor we needed to go to without doing the front door piece properly... so we ended up kinda stranded, and I had limited internet on my phone to find the host's contact info... didn't see a cell phone # etc...
We did get in the apartment finally, by luck of someone going to the same floor, and then we could get in with a lock box and had a key fob to access the garage.
The place is nice- clean- has a lovely view, and the host did get back to us eventually, but he was less than sympathetic to our plight.
If smart buildings and technology is not your forte, this place may not be for you...
It ended up ok for us, but was no fun initially.