Fabiola's place is great. It's perfectly located. I love the rooftop terrace and also the indoor common space. For whatever reason this place tends to attract interesting people, so it's great if you're into that sort of thing.
One caveat: In the winter, it's very hard to stay warm. The building is generally colder than the world outside. At night, this makes it difficult to sleep. It seemed there weren't enough heaters or heavy blankets to go around.
That said, I would definitely stay there again. I'd just bring good pajamas in the winter or stay there a different time of year.