The Oasis did some things very well. Such as the entertainment, the park, and the royal promenade.
We had a balcony cabin and it's bathroom is the deal killer for us. I was on submarines in the navy and never saw a shower that small. The counter in the bathroom was to small to lay out normal grooming materials. No lotion and no shower gel, but it was sold at an inflated price in the ships store.
Excellent service everywhere on the ship.