We were very sorry Simon had this problem. We have never had any complaints about a smoke smell before, and the whole block has no-smoking tenancies. We think this was maybe a smoker guest of a flat below causing a one-off problem. We have visited the flat several times since Simon's complaint and there does not seem to be any trace now.
We are really touched by your kind words, thank you, and so glad you had a good time. You shouldn't have worried about taking shoes off! That carpet always scrubs up no problem! Very sweet of you to worry about it! Kx