Our experience was a very positive one. There are always a few hiccups on any cruise you go on but we really didn't find anything to complain about or worry over. Our room was attended to with perfection and the smiling and friendly room attendants were fantastic.
We had done a lot of specialty dining and liked them all except Izumi's. The layout was not planned well in that people used it as a thoroughfare to cut through other areas of the ship. The shows were fun but as someone stated, you need to get there very early for a good seat. Silent disco was fun in 360 and while Pixels tried to be great, it fell flat for me.
The "meetings" for us were at 7pm nightly and not very well attended. We had more luck just walking the ship and finding our fellow passengers more exciting. Met some great couples from AU and from AZ and are still in contact with them.
If you have any specific questions, I'd be happy to give you my 2 cents but overall it was a truly wonderful time.