If the speed I've managed to do it in is anything to go by, it's the easiest Spectator since I started doing them around 6 months ago. Perhaps an entry level that e.g. lezapping can get on with?
You made my day, Greyfox! I nearly fell off my chair with laughter...that you should single me out in this foxy way, but I enjoyed it and envy you and Kayakamina for your genius...I have just downloade the puzzle and hope to "get" it out since it's that easy! Cheers!