Downtown Madrid. Indeed it is. You're only 100 meters from Gran Via which gives you ample opportunity to enjoy the Spanish way of living at evening.
The apartment itself is modern, well equipped and decorated in good taste. My wife and I enjoyed stayong there after a long day through the museums and other attractions in this city. It's worth every cent.
Jen, our host, is very kind and will not only give you tips, but offers practical solutions to practical problems that may arise.