I kind of need takedowns from time to time, mainly due to small planes.
I have shot and loved a checkmate crusader.
I've since switched over to 3 thunderstick III's, all 2 piece Td's.
You also can't see it very easily. It adds only ounces to the bow. You don't need tools to take it apart (BIG PLUS). It doesnt inhance shooting or speed anyway, it also doesnt detract from it. It's nice when traveling not to have to tote around a fish rod tube instead I can use a much smaller tube in my duffle, along with my arrows being in my duffle.
I really dislike the looks of a 3 piece longbow. Not to mention you'll need tools to get it apart, other then just a couple of the 3 piece longbows on the market today, the rest are just plain ugly. I'm sure they're nice for packability as they pack even smaller yet.
Just my take on it. I'd highly recommend one of Jims tsIII's with the robertson hinge, you wont see it with the grip on. You may rarely use it, the one time you'll really need/want it you'll be glad you have it.