A great experience! Clean and comfortable, and well-decorated. Don't expect something too big, but it makes the most of the space. The closest tube station is a 20 minute or so walk, but there are buses that come every couple minutes that can take you there in three or four minutes. And don't be worried about the location right next to the prison--it's not a bad neighborhood, and you can actually go to the prison and have a meal there at a restaurant where the inmates cook and serve the food.