I have back problems which can at times be limiting for me, and my wife has permanent impairments from an accident a few years ago. Thus I totally understand your concerns. One thing I was really looking at when on the Oasis was the ease of getting around. I was quite surprised. I found I could get anywhere on the ship both easily and quickly without much walking. They really did their homework on passenger flow. Most of the size difference has to do with it being wider and taller and not so much because it is longer. It is something that I can only give anecdotal commentary about. Obviously there are some guests who will feel it is a problem.