The place is better than expected, and Elizabeth is a great host, always available via WhatsApp and with great local tips.
The bed is comfy/great. The rest is all very good and functional: the closet, the shower, the (slow) washing machine, the TV, the kitchen, and the living room.
Outside our guest house, the main house is beautiful, and Elizabeth always invited us to try the gorgeous pool, though the weather was not on our side.
The only caution: though the neighborhood is beautiful and quiet, composed of small villas, location requires 10-14 minute walk (50% uphill) from the Cercanias Train or the Metro (Subway) respectively. If ok with this point, the place is a superb value for your money and definitely the best Airbnb we´ve stayed in Madrid.