One the positive hand, complicated toys can show off Hasbro's expertise at designing detailed toys that look amazing in both forms. But on the negative side, even experienced fans have trouble with some toys, let alone the kids. I heard Leader Sentinel Prime has been giving people problems (although I don't have him myself). I just can't imagine a young kid who the toy is aimed at having the patience or ability to transform him back and forth. Hasbro can make good looking main line toys that are simple to transform but aren't part of the Activators/Fast Action Battlers range. I don't believe the more complicated a toy is the better. It just means I'm going to get frustrated with it more easily and less likely to pick it up later.