Gya was a great and welcoming host. I stayed for 3 months and was happy to realize that she was a quiet, tidy and perfect roommate. The apartment was nice, too, and at many times it felt like I had my own apartment without any roomie.
I especially liked that the building was quiet and I never had any issues with noisy neighbors or noise from cars. The apartment is located on a street that doesn't have any real traffic. Similarly, I found that Nostrand Avenue's two subway stations made it super easy to get around and made me less dependent on one line running on time.

I think the apartment is great for singles or couples but wouldn't necessarily recommend more people (+3) staying as the futon was not that comfortable to sleep on (I had guests who slept there but had to move over to an inflatable bed). However, if you are not too fuzzed about such thing, the apartment is more than able to accommodate more people.