We were skeptical about this cruise given the low ratings people have given it. However, we are pleased to say that we had a wonderful time. The entertainment was some of the best we have ever seen. Acts were brought on and off at different ports. We saw 3 different music shows, 2 comedians, a ventriloquist and a magician. Abe, the cruise director, was incredible. There was always something fun to do on the ship everyday.
Our room was a superior balcony and was wonderful. We brought extra hangars which worked out great - you definitely need them.
Any shortcomings of the ship were minor. We prefer the Oasis class promenade. The Quantum class has the Royal Esplanade. It is narrower which results in congested traffic flow. This is also true for how the staircases and elevators are arranged. On the Oasis class, we were able to walk the stairs and avoid the elevator lines. On Anthem, there is no way to avoid the people lined up at the elevators which backs up traffic. All in all though, not a big issue.
If you have limited mobility issues, this is a good tour. If you like to be more active though, the train ride gets repetitive and long after awhile.