I stayed for about a month in the spring. I commuted into the city for work and was away during the weekends so mostly was in the apartment on weekday nights. Lunara was traveling, but her friend was staying in her room.
Pros:
-7 train station is a 2-minute walk from the building, so it's convenient getting into the city by subway
-Lunara is very responsive over text and willing to work out issues (re: toilet paper, when I couldn't find keys during check-in)
-Queen-sized bed. Lots of pillows and blankets.
-Apartment does have artistic charm
-Area around the apartment is pretty industrial, though about 10-15 minutes away it is more lively. Not much pedestrian traffic, but I felt safe walking around 8pm-9pm at night. Would not recommend later than that.
-You can control how much heat is in your room (but if the heat is not turned on in the building, there's no heat)
-One of the cheaper options within 20 minutes distance of Midtown Manhattan
Cons:
-This place is right outside the entrance to the midtown tunnel so it's pretty much impossible to fall asleep without earplugs since there is traffic throughout the night.
-Shower is extremely finicky (took me 10 minutes every time I tried to shower to not get the water scalding hot)
-There was no toilet paper for several days. We ran out the first week I was there due to her friend going through the rolls very quickly. I appreciate that Lunara called in a favor with another friend to deliver more toilet paper, but this was definitely not ideal. I think things would be different if Lunara were the one staying in the apartment instead of her friend, so probably not a huge issue for future travelers.