Great location on one of the main streets, but surprisingly quiet and peaceful. One large room, with a galley kitchen and a small bathroom - not sure how 4 people would manage, but perfectly suitable for a solo traveller/couple.
Insanely soft mattress, takes getting used to.
It is a ground floor flat with the entrance directly from the street.
Karl was super-responsive, helpful and friendly; one of the best hosts I ever stayed with.