I just comeback for a 3 days stay at Kristina's and it was fantastic. It is perfectly located to enjoy Williamsburg to the fullest and Manhattan is 1 metro station away.
The apartment was clean, spatious and smelled nice, everything you need is there . It is modestly decorated and ''empty '' so we didn't feel intrusive and had more then enough space.
Kristina was very welcoming and she waited for me with a smile,even thought my flight was delayed. It made a big difference.
In conclusion everything was perfect for our trip.