Robert's place is clean, modern, and convenient. I stayed there with my family of 4 (2 adults, one 5yo and one 1.5yo) because we were visiting friends on the UES and UWS. I think Robert's place would be excellent for two adults - plenty of room, a nice, compact kitchen, and an easy location close to parks, restaurants, grocery stores, etc. For our family of four, it was nice and convenient, but there were a few challenges for - and that is to be expected just about anywhere in NYC.
There are a few things worth noting. The apartment is nicely renovated and designed with a new kitchen and bath. The shower is top notch. The furniture and design overall is quite stylish. It felt like a respite from the city. Robert was incredibly communicative and accessing the building was easy.
For our family, there were a few things that made it a bit more challenging. It is a 4th floor walk up, which was a bit tough with a stroller and two kids, but we managed it. Our kids slept in the bedroom, so that we could stay up in the living area. Since the bathroom is only accessible from the bedroom, we had to go through it while they were sleeping. That was not an issue for us, but it might be for another group. Finally, this is an NYC apartment building, and noise travels. We ended up taking our kids outside as much as possible to avoid being noisy in the building, especially early in the morning - and there are great parks to take kids too nearby! That worked out fine for us, but it is something that families should be aware of. None of these were major issues for us and we'd stay with Robert again, but thought families with kids would appreciate knowing that before booking.
Overall, Robert's place was great - really great for a couple or several adults - and a bit more challenging for a small family, but totally workable.