B + J's place is a wonderful spot for lots of day trips around Switzerland. Its proximity to the Zurich main train station made it so easy for me to hop on and hop off, so a Swiss Rail Pass was totally worth it for me. I was able to explore Lichtenstein and surrounding Swiss mountains in the first full day, go to Jungfraujoch (hike too) and go to Luzern the second, and go to Zermatt and Lausanne the third. It's also close to restaurants that are very good, reasonably priced, and open late so I always had options even coming back after 9pm. B+J are also very friendly and I had everything I needed. They even bought me croissants!
I was there during the heat wave and the room I was in was the coolest in the whole apartment. It wasn't too bad with a fan. Then again, almost no place has AC in Switzerland.