We didn't actually get to stay in this property due to incredibly poor management by Houst.
Due to circumstances outside of our control we couldn't collect the keys until after 10pm. The keys for the property were located in a shop that closes at 10pm (defeating the point of self check-in). This restriction on check-in times is not advertised on the listing.
We tried to find a solution with Houst days before we were due to stay however they refused to work with us and simply said we could not collect the keys. Over 24 hours before we were due to arrive they stopped responding to our messages so we lodged a complaint with Airbnb. This gave us no choice but to find alternative accommodation last minute at significant extra cost.
At 11:30am on the day we were supposed to check-in and after having already arrived in London, we suddenly received several messages which looked automated giving the codes to random key lock boxes around London, informing us the keys would be in one of them. This is a shocking lapse of security divulging all of this information. Asides from the confusion about receiving these codes, not knowing which one the key would actually be in (one of the key boxes was 40 minutes away from the property), it is incredibly unreasonable for Houst to leave us in limbo up to such a late time essentially expecting us to have already arrived in London with potentially no accomodation (considering they had already told us there was no solution).
Unfortunately Airbnb told us not to cancel the booking whilst the support case was still open and their incredibly slow responses mean that we didn't get any refund. Due to the signicant extra cost we incurred this weekend due to poor management from both Houst and Airbnb we will be seeking compensation from both companies.
I will be contacting Houst directly about this.