Carnival is a tacky mostly self service cruise line. Carnival's goals seems to be trying to squeeze in as many people as possible and get them to spend, spend, spend. After all, I really want to buy all my jewelry, art work, etc. on Carnival.
The Conquest was not dirty, but it also was not looking what could be it's best.
Not once was anyone in our party requested to use the hand sanitizers. In fact, we often found them to be empty or not functioning.
Our cabin was clean and reasonably quiet. Not sure why Carnival beds are supposed to be special, mine was just average.