5 of us stayed in Isabels apartment at Christmas and we had a great time. It is close to the city centre and the train station, just about 10-15 minutes walk to each. There are three bedrooms, and 8 beds plus a sofa bed so plenty of beds for a large group, but I would expect the apartment to become quite crowded if all the beds were filled. The use of bunk beds in every room meant the sleeping spaces felt a little cramped and as there was no double beds all the couples needed to sleep separately at night.