Staying at Alex's apartment was an amazing experience. The apartment was beautiful, modern, and very clean. The four balconies were incredible, and we didn't even need to use the AC with them open at night. The apartment is on a lively street, so this is something to keep in mind if noise bothers you, but we loved feeling like we were a part of the action. The two beds were very comfortable, and even though they are in the same room, there is a good amount of privacy for both beds. There is a small kitchen, which is really nice for making a quick meal or snack. There are multiple chairs and seating areas, which was fun to be able to sit in such unique pieces of furniture all around the apartment.
I'll never forget arriving at the street for the first time and not being able to stop smiling because I was so amazed at how beautiful it was. The location is also perfect, on a smaller lively street, but almost directly off of Gran Vía. Everything was within walking distance.
We unfortunately weren't able to meet Alex during check in, but he was very communicative and friendly! I would highly recommend Alex's apartment to anyone visiting Madrid.