Mark's apartment is great for visiting Cambridge and Boston. Harvard and MIT are walkable from the apartment. I also recommend hiring a Bluebike from outside Trader Joe's, which is a block away. The Central Square station and restaurants are about 15 minutes walk away. The apartment is clean and tidy, and Mark was helpful and prompt at fixing an unstable door handle. The bedroom doors have bluetooth locks via the August app, so make sure you download the app and have bluetooth working before you arrive. The apartment has three other rooms, so expect some interaction with other guests although I had barely any. Noise from other guests wasn't a problem. I recommend Mark's place for anyone looking for a comfortable stay in Cambridge.