A friend of mine and I spent a great week in Charlie's House in the very center of Madrid (Malasaña). Our hosts were very kind and helped ous out with a lot! The house is lovingly living on 3 floors, with travellers from all over the world coming in and out almost every day. With kitchens, bathrooms, fans, etc. you'll find everything you need. If you intend to dive into actual Madrid life, it is the perfect stay. Thanks a lot for all!