This is THE perfect spot to return to after exploring Madrid or if you're there for business. It has absolutely everything you need and the place was spotless! My daughter and I had a wonderful time (COMFY bed) and felt very safe during our stay, it is like staying in a really nice gated apartment building with 24-hour security.
And when I say you get EVERYTHING I mean it (kitchen sponge, dish soap, garbage bags, dry cloth, towels, all things for bathroom,...) it was refreshing to see they've thought of everything.
Would recommend it to anyone - be prepared though, it is very small, but perfect even for a longer stay for two.