The Quantum of the Seas, while the 3rd largest cruise ship, did not have the overwhelming sense of scale that the Oasis class ships have. It had the intimate feel of a much smaller ship.
On my cruise, which was the first paid cruise after the TA, there were many technical issues: Northstar's lines were so long, that I never made it to this feature. Also, it broke down often. The Bionic Bar's POS system was buggy, and couldn't read most passengers' sea passes or wow bands. Also, we watched it do its entertaining bit--the two robots danced--and then one of the robots immediately after crashed into equipment and broke it, and then died.
There were a lot of issues with Internet, which is touted as the fastest of any ship. On a 3-night cruise, with the highest end internet package, we didn't have useable service in our Grand Suite until the 2nd night.
Our suite was beautifully appointed, spacious and comfortable. We had our own climate control and were able to keep the room at a temperature that made for comfortable sleeping. Our attendant was not as good as others we've experienced. He made frequent mistakes.