This was my first trip on a Oasis class ship and I was well pleased. Took RCI transfer from FLL to ship, a "walk aboard" embarkation (very quick), many eating area open for lunch, to Cabin at 1300, luggage arrived by 1500, and off to enjoy the ship for the next 12 nights. As someone who really only likes small, quiet ships, - and is usually disturbed by the :"noise" on RCI, I was most pleasantly surprised. It is amazing how well organized everything is and how, other than at Guest Services, well people are "spread out" about this huge ship. Unfortunately there was always lines at Guest Services, even at 0700 in the morning. The Concierge Lounge was also jammed, as were the designated overflow areas, as there were 600+ Diamond Plus's and up aboard. Had a wonderful crossing; however I will probably NOT cruise Oasis class on their seven day trips, for it is impossible (I think) to do and see everything aboard in ONLY seven days. Shows - Hairspray, Aquatic, etc. were excellent - Guest entertainers were - as usual - so so. Disembarkation in Barcelona was as efficient and quick as I have ever seen