Myself and my 3 friends had a wonderful stay at Robin's loft, I can only echo what the other reviews say - it is a very large apartment with loads of space and Robin is a lovely lady. It felt very comfortable and homely with a great kitchen and two bathrooms which was convenient. As the walls don't reach the ceiling it may not be the best place for a group with different timings to stay as the sound travels, but it was not a problem for us - it was just great to all have our own space and privacy which we would not have got in a hotel for the same price, by a mile!! Also it was great to be able to sit round a table together and chat, or watch TV together on the sofas.
The neighbourhood felt safe and there are loads of shops nearby - a little hint, if you want to get to Grand Central quickly, walk to the 125th subway stop and take the express train. This is quicker than going from 116th because that stops at every station.
I would certainly stay here again and would definately recommend Robin's loft, even to large groups and families.