My wife and I stayed here for several nights when we were visiting friends in the neighborhood. They recommended the Adler highly and I can see why. It is a wonderful small hotel in a smart - but not touristy - section of Madrid. It's clear that the owners take great pride in the property. The staff are first rate, very helpful and welcoming. The rooms (we stayed in two) are well appointed and maintained to a very high standard. Great linens and towels. Great service. Breakfast, which is the only meal we had in the hotel, is outstanding. (There are some wonderful small tapas restaurants on the local side streets that make for great places for dinner.) The Adler is within walking (long-ish) or easy Metro connection to all the places a visitor will want to go in Madrid. If you are going to Madrid, check out the Adler. If you like smaller hotels, I'm sure you will be very pleased with it as your base of operations.