We had an amazing time in Mark's apartment! He was very quick with responses and even arranged our rides to and from the airport :)
They were also nice enough to store our luggages at their partner hotel until our check in. Overall the apartment was very spacious and well situated! We literally walked everywhere!
The only thing I would probably comment about would be the washroom as there was no actual door (curtain only)- the bath tub was small (handheld shower head) and toilet was in a weird position. This didn't bother us though. Typical for Europe :) I wouldn't mind staying here again! Thanks Mark!