We have not actually met Mark but we met Karolina, who was lovely and very welcoming. Mark was great at communicating though. He did reply to all of our emails and enquiries and was very understanding since we were newbies to the whole air bnb experience.
The flat was fanstastic. Location is great and you can walk everywhere. There are trams and tube nearby and lots of grocery shops.
Flat has everything you need, from towels, cooking utensils, tea & coffee, sugar, salt & pepper, fridge, cooker to an amazing bed and great central heating which was the best thing ever - it was great to come back from all day of walking to a lovely, cosy and warm flat :-)
We would definitely stay again in this apartment!