I stayed at Kristina's place with my boyfriend, and family for 4 days in july 2012. It was perfect.

First of all, even before we arrived, Kristina was very helpful and responding quickly. We found her to be a really nice person.
Then we arrived, she gave us the keys, her precious tips about the neighbors then disappeared to let us enjoy our stay. There was beers in the fridge. We found her to be a really, really nice person.
We spent 4 amazing days in NYC and Williamsburg, which is definitely the place that makes you wanna move in as soon as possible. Everything was perfect until sunday, when we found out that our car had been towed. She was the one to help us confirm it had not been stolen ("thanks God it's towed!!" ;) ) and as we had to wait until the next day to pick up our car, she offered to stay one more night.
Then we found she was a really, amazingly nice person.

The appartment is spacious, perfect for 4 people. Nothing over fancy, but it's comfortable, very clean and modern, with everything you need to feel home. We loved the bathroom.

Conclusion: be careful where you park your car and book without a worry!