Chuck's Reviews Transformers Rise of the Beasts 2in1 Masks Bumblebee and Optimus Primal
 

When the masks were first revealed I was intrigued with them and had a few questions; how would they work, fit, and feel? Well, I'm happy with both of them but I really enjoy the Optimus Primal mask that much more. Transformation is relatively simple, any issues might come from the ratcheting joints having to be worked into the right positions. Surprisingly the straps don't really get in the way and tuck nicely into the back of the figures. The price might be a little off-putting so if you can only get one, Primal is the way to go.

http://www.youtube.com/watch?v=CTKBR1dXLDg