I think I have made a total of 3 wingsuit jumps - from altitude - several years ago when the suits were not as good as they are now. Did not like it at all. I was by myself so no real reference, so was kind of boring. What I did not like the most was the very small range of motion you have in the arms, particularly when it comes time to reach behind your back for the BOC (Bottom of Container) pilot chute (deploys to start the deployment/opening sequence). With all that surface area, even a minor movement brings big changes in airflow which effects your body position. After opening, the suit I was using didn't have many zippers, and it was a struggle to get my hands up to the toggles...all I could think about was "if you have a malfunction while in this suit, it is going to be a bioch to deal with"...
While I might think what Corliss is doing is incredibly cool, I can neither afford the time/travel/money or risk to become proficient enough to try it. My 10 year old daughter needs her dad too much for me to go the the extremes that he's pushing.
My favorite kind of skydiving by far is 'big way' - larger formations. 20 way is a hoot.
I PROMISE YOU, there is plenty enough excitement stepping out the door of an airplane at 14.5k to get your heart pumping.