Only 1,600 passengers on our cruise. The dining venues were good with no wait - especially enjoyed the Indulge Food Hall. The boat did not feel crowded.
However, even at half capacity, the gym, the pool deck and the theatre were often full. Several of the shows were cancelled for "technical reasons" (No "Donna Summer The Musical" or "The Price Is Right").
A lot of beautiful lounge seats around deck 8. Unfortunately, many are covered with soot from the smokestack; you need to be careful where you sit to not stain your clothes.