We enjoyed our stay here. It is a good option if you have to keep your budget in mind. The place is in a very nice and quiet neighbourhood in the middle between Harvard and MIT. The Metro is about 15 minutes' walk away. Communication from the host was very detailed and clear. We never met her as it is possible to check in with a code provided beforehand. The property is very safe with three separate doors with keypad locks (including on your bedroom door). We shared an apartment/unit with other guests but did not have any issues and they were quiet. The bedroom was clean.