Do not pass up a trip to the Panama Canal, even on the Norwegian Star if that is the only way you can afford to do it. Any other options available - take them! The Canal experience itself was damaged by the fact that there was no expert talk until we were actually in the Canal (Lake Gatun, specifically) which meant to hear it you missed part of the point of the trip. (Surely Panama has a presenter that can do a better job with a power point presentation than a fourth grade level!) Oh and don't forget to stand in an hour long line to purchase your commemorative tee shirt on "one day only!"
After repeated warnings to drink plenty of water while out on deck, jammed against the railings, struggling for a view, much less a picture opportunity, the friendly cruise staff was there to SELL you bottled water! Yes, that is right, sell you water while on the ship! No frosty urns of icy cold water to stave off fainting and heat stress.
There was no inside area at the front of the ship where you could be seated comfortably or for the physically challenged to enjoy the passage. The crew had the best view, and granted with their hard work they pay the biggest price for this fleeting privilege.
Our cabin was okay. The door came off the shower while I was in it but I could re-track it myself. Maintenance WD40'd the screeching drawers the first day. I was glad our cabin was no wear near mid ship because the noise levels were so high from the open Atrium entertainment. I like that the space under the bed was usable for suitcases and storage of life jackets.