We did our very first cruise on Regent when it was known as Radisson. We did about 7 cruises with them and loved every minute of every cruise. It has been 5 years since we have sailed on the Mariner, and unfortunately, we have to say it just wasn't the same.
The cabin was beautiful and the ship and most of the staff great. However, it was sort of obvious that they are cutting some corners.
As people who work out, we went to the gym. Some of the machines were not working and we were told some hadn't been working since April! We asked about it and were told "it is out of our control." Who is responsible to see that the equipment is maintained? The televisions on the machines for the most part were not working. If you do an hour workout, all you have left to look at is a wall - - no ocean views or anything. By the end of our cruise there was only one treadmill in operation.
This was a very nice tour going to the southernmost part of Africa. Stopped to see penguins and lunch. Very nice excursion.