The room was pretty much as advertised. It was a little snug for 3 adults staying for a full week, but it still served us well.
The room had a mini fridge where we could keep our water bottles cold (and souvinier chocolates from melting!) There was also a tea tray with cups, cream, sugar, tea, and an electric kettle left out for us, which was a pleasant surprise!
Since the room was up on the top floor, it got pretty warm during the day, but we discovered that the skylight window does open, so we could let some fresh air in.
My sister and I shared the large bed and we found that the mattress was a little too hard and tough on our backs, but my brother said the small bed was OK!
The staff at the Windmill were all very friendly and helpful in getting us checked in when we arrived. Since this was our first trip to London, we didn't spend much time there, but it was a pretty nice pub and is in a pretty cool neighborhood. There's plenty of food, shops, and bars/pubs just on that same street, so no need to travel far if you need anything. They also had a lot of helpful info at the Windmill for tourists, like maps, info cards, and a helpful list of taxi fares to the nearest airports & train stations. Gerry is also very friendly and had a lot of helpful suggestions for getting around and things to do.
Getting to and from central London was very easy. There's a bus stop just outside the Windmill with several bus routes that come through. It was actually a pretty good location, about halfway between the Heathrow airport and central London, so travel back to the airport to catch our flights home was pretty painless.
Overall a good Airbnb experience!