We were on the same trip and fortunately we didn't have any of the same issues. My favorite meal I've ever had on any ship was in Aqua. We boarded immediately, disembarkation was slow, but not horrible for us (self walk off). Our room steward was awesome and always greeted us warmly. They always had the drinks we needed except they ran out of Truly the second to last day. Bar staff was very attentive, oftentimes following us to our seat to take our order.
Yes, it was crowded in the buffet. We oftentimes ate outside or sat with others. We met some great people doing this.
Missing the 2 ports was disappointing, but I do believe it was the right decision. We did get an extended cruise thru the fjords which was amazing and almost made up for it.
I do think there was some issues with communication, or lack thereof. They did try to prevent mass lineups, but people weren't listening.
Entertainment was a little disappointing. The female vocalist and male vocalist were outstanding. More variety would have been helpful to pass the longer days.
This wasn't our favorite cruise, but we enjoyed it nonetheless. Everyone's experience is different, though. Hopefully you'll experience something more similar to what we had vs what the OP experienced.