My experience with JetBlue was a very positive one I was lucky enough to sample Core and Mint.
Mint –Very comfortable and spacious seating area the seat was easy to operate and very comfortable there was also everything you could think you would need at hand, ordering the inflight meal was nice and easy on the screen I loved that you could mix and match and pick exactly what you fancied, the cabin crew were fantastic very attentive. A massive positive was how quick and easy you cleared customs in New York we had literally collected our luggage and cleared customs in less than 30 minutes.
We returned in Core one thing that stood out was the legroom for a normal economy seat it didn’t feel cramped at all.
Again loved that you could order what you fancied and the pantry area at the rear was fab.