Pros. Super central location, 2 min walk from Gran Via.
Cons. Many, see below.
1. Maybe he was busy that week, but the host took a good 6 days to reply to our first message on the app inquiring about an early check in. So not exactly responsive.
2. We arrived at Madrid around 11 AM and the host did not allow us to even keep our luggage inside his home before 2 PM, let alone an early check-in. We had to haul our oversized luggage across Gran Via to find a place to keep our luggage for a couple of hours.
3. The host declined all our requests to extend the check out time even for as little as half an hour. This is just poor hospitality in my opinion.
4. Slightly smelly corridors, but that did not bother us as much since the room was okay. No ventilation inside the room though.
5. Lastly, you might see the host in/around the house but he'll just pass right by you and ignore you completely. The only way you get to speak with him is via the Airbnb app :)