We had previously cruised with Celebrity and Princess on the Alaska, Mexico and Eastern Caribbean itineraries.
The main reason I wanted to try out RCI was to check out the ice rink and other amenities on a Voyager class ship. The fact that this ship stops at Belize was a bonus.
EOS can appear to be pretty big and glitzy if one hasn't travel on a comparable sized ship such as the Princess Grand class. On a closer examination though the ship appears to be worn, especially the carpet, furniture and wood trimming and wasn't maintained well.