Having been on several cruises now I have to say that the Epic is not my favourite. I think the younger generations might find it hyped and fun with crowds and noise but we couldn't find a quiet place outside of our stateroom and balcony. No promenade deck was a big disappointment, just a one-way return jogging strip, top deck was open air but the space seemed smaller than on other ships, could be that there are just too many people filling it up. The music was blaring so loud up there that we couldn't eat or drink outside and carry on any kind of conversation.
On two different occasions in the library bar I was next in line for service and both times overlooked for the next, younger, person in line, I've never experienced this anywhere in my life. They need to train their barmen to be polite to the older travelers (I'm 65 years old, not exactly at the doddling stage yet). I don't think they even register that you're there unless you are under 40.
We were disappointed that the mini bar is not replenished each day, even when we left an order form on our desk before heading out at 7:30 am. for our tours. Returning from a long hot day leads to disappointment when the much anticipated cold drink isn't there. I called room service and told them of my plight so they delivered the drinks to us. Trying to get one of the charges dismissed by phone resulted in being told I had to report in person to Guest Services where I was met with by a most uncharming lady who told me I shouldn't be calling room service for drinks. She did remove the $15.00 charge (this was for one bottle of Pellegrino and two cans of tonic water, not cheap!).