The apartment is in a great location, right at the top of old town, easy to walk to the river and sightseeing. It's perfect if you need a place to rest after day's exploring the city.
There are a few things you need to bear in mind such as quite noisy neighbourhood due to many works being carried out, the mattress is very hard and short. So if you are taller then you might struggle a bit. Also the bathroom, especially shower, is very small. The heater isn't sufficient and does very little.
Otherwise it is great place surrounded by small coffee shops where you can have your breakfast (no kitchen in the apartment), many buses right on your doorstep and accessibly to the old town.
Despite a few points I mentioned above I would book the place again.