This unit is well located only one train (not metro/tram) station away from centro station. the apartment is clean and well equipped with everything you need. the balcony is refreshing with plants too. you can smoke there if you want to. marcel is easy to contact and very responsive to any requests, and also flexible with arrangements/dates if it works for both.
I would caution tho:
1. BE CAREFUL NOT to leave your keys inside the apartment or you will lock yourself out and engaging a locksmith is troublesome and expensive.
2. This unit is on the top floor of the building and there is no elevator, so do be prepared to hike up!