Sounds interesting, though my fighters stay OK on top of my carriers (others have mentioned having a problem, though). I’ve been a bit interested in magnetic wargames since reading about the strips in the Avalon Hill catalog back in the day. I’ve never done it (I like normal tabletop games just fine, including AA50), but I imagine it’d be pretty cool-looking to have a wall-mounted wargame with magnetic pieces.
Learning to differentiate the various ships took a little time; I was tempted to mark them some way, too. It doesn’t help that the German/Italian cruisers are so big (like battleships) with flat sterns (like destroyers), or that their transports don’t have cranes, but I think I have all the ships sorted now. And now that I’m used to all the pieces, I rather like them.