Had a great stay at Annette's apartment in Carroll Gardens. It was clean, and actually bigger than it appeared in the photos. There were 3 of us, and although the second bed isn't full-sized, one of our party (an adult) was able to fit there just fine.
We were initially a bit worried about finding parking in the neighbourhood, but it wasn't a problem -- found a spot on the street, one block away from the apartment, that we were able to keep for the whole weekend.
Best of all, there's a great little coffee shop right next door to Annette's place. (It's called Maglia Rosa.)
Overall, it's a great place for a couple -- and/or a couple with a small friend!