Dear Giovanni,
In general our stay in London was good. The location is great, and the apartment is really nice, big and pleasant. However the cleaning is not good, especially in the rooms. Also the hot water of the common bathroom, was not enough; the air conditioner of one room, not heated, and the TV of one of rooms didn’t work. All these has overcome since we were in business and we just use the apartment to sleep.
It’s also important to mention that he fact, receive the codes after arrival and with a phone call, brings some inconvenient, as wait more than 15 minutes with bags, and outside with a cold weather. I would suggested that you send the codes in the act of booking confirmation.
The fact that no have elevator, in our case, is a problem since we up 3 floors with bags over than 19kgs. I think this information must be better indicated.
Finally, we usually stay in places that we can leave our luggage after check-out, even in apartments, they always provides a place or find a solution (and we make more than 10 travels by year). With you, unfortunately, didn’t show any interest to help find a solution, even when we offer to pay one more day or a later check-out.
I think you should improve these points, especially when the clients are a company and not a particular.
For us, after so many, many travels, this was to learn and prevent situations as these.