One couple traveled from the US to meet the other three couples in the UK for our flight to Barcelona, where we had booked the two-day pre-cruise package. Our British Airways flight to Barcelona was delayed an hour when a already checked-in family misplaced a child, frighteningly not located by the flight time. The general mood on the plane was of sympathy with the parents and concern, and the pilots soon made up most of the time enroute. Flawless transfer to our hotel, Hotel Confortel Barcelona, a luxurious and modern hotel very close to the beach (which we didn't find out until the last morning).
Transfer to the ship on Sunday November 1 took an hour, during which time we meandered around the city only picking up at one other hotel and finally coming back very near our hotel to enter the pier area. We think the driver was killing time so we wouldn't arrive till noon at the ship - we probably should have been picked up 30 minutes later. Once we got there, embarkation was amazingly quick and we were on the ship before 1pm, where they had a lovely buffet ready for us in the Garden Cafe.
The Norwegian Gem is a beautiful ship, large but not overwhelming. Once we found favorite places to hang out, we didn't keep exploring, so I'm sure some nooks remained hidden to us. We took all our breakfasts in the Garden Cafe, finding seating sometimes challenging, but lots of room (and different good food) on the back deck, divided into smoking and non-smoking sections.