For a 2-day stay, with just a place to rest at night, it was exactly what was needed.
If you do not mind a bed and breakfast type set up, this should do well for you also. The shared bathrooms were a worry when trying to keep a schedule, but only came into play once (maybe for a 5-10 minute wait). Small room (max 2 people), closet, no dresser, but a desk if you have laptop, etc.
Greg responded to all my messages within 48 hours or less. The room was clean and all the amenities promised were there.
As for location: Great for some of the hospitals and schools, but if you want to stay close to downtown, you may need a different place. However, you will pay the price for the extra convenience (like 2-3 times minimum). Instead the decision was made to just hop the train ($12 day/24 hour pass for all MBTA), which is five or ten minutes minutes away, and take a 20 -30 minute train ride to almost everywhere on the 2 day list. When pressed for time it was easy to take a cheap (single digit) Uber or Lyft to places like Fenway and a little more to hit places like Union Street or North End (cost to airport via Uber and Lyft is about $25). Again all accessible by train for about $12/day.
One thing to note: there were no food stores in walking distance, or at least that we could find. This was fine, as as that all was really wanted was some small things like water and snack type things, but if you are looking to use the kitchen to cook your meals you may want to ask Gregory for more information before booking.