Just upgraded, tried the new AF system with the 27mm and the 18-55mm, very pleased would be putting it mildly.
I have only recently purchased the 27mm was thinking to myself why did I waste my money on this lens that can't even pull focus, this totally negates this issues I was having.
Really improves the workflow for me a soon to be ex-Nikon user who is still getting to grips with the Fuji universe.