* Avoid deck 14 rooms by any means, until they are at the very nose of the ship (see cabin review)
* All the packages (drinks, Internet) are hugely overpriced and I see no reason you'd like to use them as no bartender could make proper cocktail there regardless of the price. The only drinkable mix is fruit smoothie so just stick to plain drinks, especially their a la carte price is quite reasonable in compare with other cruises. Also draw attention to the wine prices at main restaurants - you take away bottles to any bar ;)
Internet package - if you unlucky to buy it for any reason, draw as much attention as possible to their instruction, on how to connect it in MSC app, and follow exact procedure, shutting off everything they as to shut and disconnect from Internet every time you do not use it.
Deck 14 is called World Class, considering it supposed to be the deck with best cabins available. Unfortunately this is not the case. Some cabins situated under the extension of the deck 15, which means you simply have no sunshine on your balcony for the whole cruise as well as no sky (see photo). Also this extension works as amplifier for noises of the food makretplace above, which takes 3rd part of the deck 15, and these noises and sounds are constant with little pause between 2 and 5 am. So forget about sleep, if you are sensitive sleeper. Residents of cabins closer to the the nose, can enjoy late night disco music from main swimming pool area. From my point of view the best cabins are at deck 8 - they are the same as other balcony cabins plus their balconies are at least 3 times bigger then ones on the other decks.