I am completing a Long EZ and have installed the Wilhelmson nose lift. I have cycled it several times with me on-board and it does just fine. So well in fact, I removed the step. Getting in the plane, I will set the nose about a foot off the ground and then raise it the rest of the way.
I have heard that it may put too much stress on the nose gear of a cozy because of the additional weight of another person in the front.
William