Mixed Feelings
I really wanted to love this hotel and some aspects I did, but and there is a big but it depends on the room and floor you get. It's location is fabulous,aesthetically very pleasing and the attached museum a big hit with our kids. Visited here with another family of four in Easter 2012. We were both located on the 3rd floor, our friends with a nice view over the park but our first room, yes first room was on top of Starbucks at the back of the hotel and facing the Irish bar. I have no issues with the bar across the road apart from not wishing to feel I'm sleeping in the middle of the dance floor! The sound proofing in this conversion is questionable, we could here the next room guy coughing like he was sat next to us and the dog barking is another story!
We ended being moved to three different rooms in the middle of the night because of the noise levels. 
This is a beautiful hotel with lots of positives. However, ensure a positive stay by avoid staying on the third floor, kids, families and dogs floor!! Rooms do smell and your not advised if a dog has been in the room before hand so make sure you don't have allergies.
Would I stay here again?? Sorry no Id spend my £1000.00 for 4 nights somewhere else!!