I have been flying with the iflyrv10 handles for about a year and a half. I don't have any trouble reaching both the handle and the button from either forward of the wing or behind the wing. (I am 6'1")
Steve is great to deal with. I have his door locks, cooling plenum, and door pull down straps. He is working on an alternative to the Van's secondary door latch, but I don't know if it is ready for market yet.