Great location so close to the Retiro and very good access to public transport. Good for a young couple. The TV is not smart so will not access the internet but if you are out and about in beautiful Madrid all day that's the least of your worries!!
I don't think this place is suitable for anyone with mobility problems The bed is a bit awkward to get in and out of because it's set in a corner right under the eaves and the bath/shower is also difficult to get in and out of because it is set back into a long, narrow area. But otherwise it's very open plan and quite light considering it's up in the eaves of the building.