Stayed here for three nights, and wouldn't hesitate to stay here again. Every single staff member was exceptional; professional, friendly and kind. Our room was fantastic; great bathroom and we loved the wooden shutters looking out over the street. We were on the 5th floor, and didn't hear much street noise. Heard noises from down the corridor, but nothing abnormal for such a large hotel.
Breakfast options were fantastic; lots of pastries, hot and cold options, and something to suit all tastes. There was a coffee machine, but it only seemed to serve decaf coffee throughout our stay. Great selection of juices.
The hotel was beautiful and we are so glad we stayed in this particular location; it was very walkable to all of the main sites, and although it was located on a busy, thriving street, it didn't feel as tourist-y as the neighbouring areas (e.g., Grand Via, where we also looked initially for hotel options).
This was more towards the expensive end of the hotels we were looking at, but we couldn't fault a thing, and somewhat regret booking a much cheaper hotel next to the airport for our final night (in retrospect we would have preferred to be at Hotel Francisco I for one extra night, and utilised their airport shuttle service).
Thank you to all of the staff for making this such an excellent stay. We highly recommend.