PROS:
Charlie was communicative and very helpful. He also lives right across the street so any requests were speedy and efficient. The unit was also quite spacious, with a sizable living room and kitchen. It's also 1 block away from the Roosevelt station, providing access to Red, Orange, and Green subway lines.
CONS:
In this case, being "close to the subway tracks" means that you would think twice about sticking your arm out the window at full length. It also means that if a subway car is awaiting to enter the station, they have full view into all of the rooms.
SUMMARY:
The other reviewers already said this: this unit is not good for people who want quiet. Subway cars WILL pass every 10 minutes about 3 feet in front of the windows. For travelers okay with this, this Airbnb is conveniently located, has a great host, and likely cheaper than other options in the area.