I rented with Luping and Steven for a month, and had a wonderful stay. The apartment was clean when I arrived with soap, paper towels, toilet paper, etc. provided. The Roosevelt Island area felt very safe, and I was comfortable walking outside even at night. A Duane Reade (Walgreens) store is located directly downstairs, and the complex is situated right next to the subway and sky tram stations for access to Manhattan.
The hosts were very responsive and addressed all questions I had immediately. I accidentally broke a sliding door to the laundry closet while I was there, and Luping contacted the building's maintenance right away to have it fixed. I did not meet the hosts in person, but the building has concierge personnel stationed at the front entrance who provide keys and seem to check in with all residents to ensure that people entering the building have a right to be there. Great wifi for work from home. I will definitely be renting with these hosts again if I return to the Manhattan area.