Overall we enjoyed staying here but there are a few things to note that I wish I had known before booking, especially if travelling with a family.
Pros - really comfy beds, and excellent food at Mr. Porter (including the breakfast).
Cons - the adjoining room that our kids stayed in had no windows. They were blocked out, so the room was a little oppressive.
The indoor pool is adult only. This was a huge bummer as since we were travelling in December when outdoor pools aren't in use, we specifically chose a hotel with an indoor pool only to get there and be told the kids were not allowed in. They also never mentioned this at reception when we asked what time the pool was open until, so our kids were very disappointed. Also, no real special effort for kids (kids robes, teddy bears or toiletries) as I would expect from a 5 star hotel.
Worth noting also, that the view from our room was of a rough looking courtyard. No real feel that you are in Barcelona, although at least our room had windows!
Overall, a good experience but not what I would expect from a 5 star hotel. Wasn't horrible but would try somewhere else next time.