We stayed here for 7 days and really liked it. The location is absolutely great (10-15 min walk to the hipper, northern part of Mitte): tons of cafes, restaurants, small stores, great neighbourhood feel, easy to walk around, close to the subway and tram, etc. Michelle was a great host: communication was easy (he responded to texts and emails within 5-30min) and he was clear and helpful. The apartment itself has a really great spacious layout, is very bright (which can be an issue if you need total darkness to sleep) and well-furnished. Even though the upgrades are not so recent, everything is functional and comfortable. No surprises here, as everything was as described or clear from the pictures.