Justin's place is very clean and comfortable. It's a bit small (as expected, it's a studio) but it is so bright and open it didn't feel even slightly cramped. The decor is very modern but still cozy. The building itself is very nice, though slightly removed from things (not a problem if you enjoy walking as much as we do).
Most significantly, we booked very last minute and Justin was very responsive and made it easy for us to stay even on short notice. We didn't have any questions or concerns while we were there but I expect he would have been helpful with anything we needed.
We overall enjoyed our time at Justin's place and I would recommend to others.