The apartement is nice and cozy. You have everything that you need in the apartment! The location is really good you can easily walk to the top places of Madrid. Chueca is a nice area to stay in Madrid.
The only problem is the noise made by the neighbour. The apartment is not well isolated for the sound and we could really hear everyhting (party at 4am on saturday night, neighbour watching games of throne --> hear all the dialogues). If you are picky with the noise, bring your earplugs.