It was a great month long stay in Beacon Hill! I couldn't have been happier with the accomodations and location.
The neighborhood is so quaint and feels very safe, yet you're no more than a 15-20 minute walk to the bustling hot spots of North End and Back Bay. My personal favorite spot being the Public Gardens in which you walk through the charming Charles St. to reach. Additionally, it's conveniently located with a 5 minute walk to Whole Foods and a (small) Target.
Despite the small living quarters, my friend and I were able to share the space (the rollaway bed is surprisingly comfortable!) and both work remotely from the apartment.
One thing to note is that it is a fourth floor walk up with narrow stairways, so it was a little challenging hauling luggage at the beginning/end of our stay. Community washer and dryer are on the first floor and operated by quarters. We never had any issues with them being in use when needed.