I really loved Mercury and in fact I am sailing on her again April 11th. I was, however, quite dissapointed with the fitness center. If you like to do floor work, plan on laying a towel (a very small towel at that) directly on the carpeted floor. They have no workout mats. When we asked, they replied "we have nice padded carpet". No carpet is padded enough to endure a vigorous floor workout IMHO. It also seemed rather unsanitary. Workout mats can be sprayed with disinfectant spray. It doesn't appear to me that carpet could be that thoroughly cleaned of all that sweat. I also thought their gym towels were a little on the skimpy side. I also thought the gym facility itself was rather small compared to other ships of similiar tonnage that I have sailed. Did these items influence my cruise, not a bit, just suprised me a little. Hope this is helpful.