We loved staying at Odette's place. The appartment is located perfectly, it's easy to get to every place of interest in Madrid, there are several metro stations nearby, lots of caffes and shops. Malasaña itself is very beautiful, though a bit loud at night.
The appartment has its authentic cool atmoshere, the kitchen has everything you'd need for cooking (including perfect wine glasses 😃). The room is not big but since we only came home to shower and sleep that was ok for us. The hostess is AMAZING! Odette is very friendly and nice and completely laid back.
One note: we visited Madrid in the beginning of April and it was rather cold in the apartment without heating. So if you are like us used to warmth in the appartment, keep this in mind.