The apartment is exactly as described, the neighborhood is great, subways are close. Check-in was straightforward and easy (although 45m late). The kitchen is fairly well stocked with pots, pans and utensils (all low-end Ikea, but completely useable).
The apartment is on the courtyard-side of the building, so little to no street noise. The upstairs neighbor occasionally practices their piano, but never for very long - I never found it bothersome.
There's a Fairway supermarket around the corner on 26th and 6th, which is very convenient and a bit rare in Manhattan. The bed mattress is extremely firm, but I never had issues sleeping on it - if you're more sensitive to that kind of thing you may find it problematic.
Isaac was helpful and quick to respond whenever I had any questions. I'd be happy to stay with him again!