Centrally located on a quiet street and just a few minutes walk from Anton Martin metro on the main north-south line. Lively eating areas close by. 15-20 minutes walk to most of the places you might want to enjoy on a Madrid break. Mainline stations nearby to take you on day trips to Toledo and Salamanca among others.
The flat is clean, spacious (with high ceilings) and well equipped - the bathroom needs a little work but is functional.
Your hosts are responsive, friendly and helpful - they can even arrange airport transfers for you.
Should you go? Absolutely!