We have been on 45 cruises, and unfortunately the Wonder was our 40th and our worst. We complained for 5 nights to get some heat in our room (remember this is Alaska!). We got it the last night at sea.
The music in the dinning room split our ears to the point our waiter could not understand us as we yelled at him. It took a half-hour to get it turned down because it was managed in a control booth ...