Superb location, you get to all main points easily. However be aware that quite noisy for the old town, there is lots of traffic all around there so if you're looking for a quite place, look in other areas of the city. Also the old houses tend to be quite dark as streets are narrow and little bit damp.
The flat is nicely decorated, clean and you get all you need there. Also the host responds quickly to any query and provides useful information before arrival.