My 10 day stay at Hotel Atlantico was wonderful. The hotel staff was friendly and helpful. My check-in was quick, and unlike many hotels, the check-in time was at 12:00 noon instead of 2:00 pm!
My hotel room had great amenities. I had requested 2 twin beds, and they were provided. The room overlooked the Gran Via, which was great. Yes, it could be a bit noisy, but isn't that why you would want to stay on the main thoroughfare in the middle of the action!
The breakfast buffet was good, also, with many food options.
I would definitely recommend Hotel Atlantico, and if I were to return to Madrid, I would stay there again.