Regent sells this cruise as luxury, which is deceptive. Most of their ships are old which in this case is the Mariner, which is in disrepair [the Navigator which I sailed on is worse the ac could not be fixed and staterooms in aft bounced from the engine room.] The stateroom was not ready for use. The ac temperature was 74 and there was slow airflow. After four calls throughout the day and being ignored I threatened to call the General Manager and two men showed up to fix it. The shower had low pressure and a new shower head had to be replaced. Basically, I am restoring the stateroom for the cruise line. The bathtub was very high and narrow. Although we were there was no accident because we were careful and physically in good shape, I’m sure there are many accidents. I do not know how in good faith Regent can allow this dangerous situation to continue. The ship’s waste-processing system leaked toxic gas into my stateroom, throughout the ship and even along dockside at different times. Try breathing this all weak with no fix. The toilet stopped working because the entire line had to be repaired. The quality of the food was on the cheap end. For example, I ordered a rib eye, which I could make shoes out of which were not even supermarket quality. The fruit was not ripe, lower end quality, as you know fruit is rated. The service is slow and disorganized because Regent hire third world labor whose forte is not serving. The dining room manager was obnoxious. The dining attire stated nothing about sandals. However, He singles me out in a non-discrete manner in the middle of the dining room for all to hear “ sandals are not allowed!” I pointed to male guest already seated with sandals and asked what do you have to say to him….His response was no response. I asked him about the woman wearing sandals and he ignorantly responded, “this not discrimination!” Keep in mind he didn’t read stated rules on the menu, which I have already mentioned. Now we get to the pool deck. Although drinks are included there were no waiters on deck 12. There were three waiters on deck 11 by the pool. I spoke to the Beverage Manager who does not do his job and supervise and informed him. I sure the reader will not be surprised that the next day there were no waiters on deck 12 serving drinks and to make matters worse the pool deck manager allowed every towel area to run out of towels. I know this because I had to check every area looking for towels instead of relaxing. When I found him his explanation was, “there’s wind I can't put them out!” He could not explain why he did not put the towels in the boxes with lids [another incompetent.] It should be noted the main incompetent is the General Manager who hides in the back, is never visible, does speak to passengers passing by to get feedback. The buck ends with the CEO. The pyramid crumbles from the top and that’s who’s responsible for their brand. This cruise line is an overpriced, high-end rip-off. Just about any mid priced cruise line can do way better than this. Save your money or find a real luxury cruise line if it exists.