I need to confess that I didn't notice them the time that I will arrive because I didn't know till I arrived in London, however, they told me to contact us by phone as soon as you arrived but I wait more than 30min to be able to contact them to have the instructions to be in the building.
Another disappointing thing is that the light from the bathroom stopped working on the first day, In the same way, the first day we could not adjust the heating and the temperature was too high, to the point of not being able to sleep, they sent someone the next day and he was able to solve that, but not the light in the bathroom. He told us that there was no maintenance staff because it was the weekend, which I can understand, and even more so because it was the end of the year, but they did not offer any other alternative.
To conclude, the place is good, only those points that must be taken care of.