The flat is very stylish and comfortable. The stairs to the loft are a bit steep which wasn't a problem for us but could be if you have mobility issues.
It is located in what we found to be the best part of town for bars, tapas etc.
Right opposite is Lola por Dios which we would highly recommend. It can make the evenings a bit noisy but it's well worth it.
It is walking distance from all the major sights and monuments and Maria gave us some great tips. Check-in and check-out were very easy.
We'll definitely come back!