I just returned from THE. BEST. GIRLS. TRIP. on Carnival Horizon and the only thing that I didn't enjoy to the fullest, was some of the food in the dining area. Other than that the ship itself was clean, the other food options were great, the staff was very friendly, and the entertainment was awesome. There were 2 crew members that really stood out. The cruise director Mike was very entertaining and the young man that host karaoke, I believe his name was Bradley. They were so pleasant and fun and really good at what they do.
Boarding the ship was a breeze. No more sitting around waiting to board. Once we went through the security checkpoint we were on our way to the bar and waiting for the OK to go in our rooms. The elevator situation did get a bit frustrating on the first day. Maybe because people were getting acquainted with the new technology. After the first couple of hours, onboard that wasn't much of a problem either.
Do not miss the Adult scavenger hunt if they have it listed as an activity. It is for open-minded individuals that are not easily offended, but it was so much fun. The late night party on the Serenity deck was awesome too!!