I like Arcees transformation, much like animated prowl. I was a bit meh with her to start with, but she's growing on me. you can adjuste the height of the rear wheel so that she's either resting on her feet and the bike will stand up or you can lower the wheel so the bike is only on the two wheels and needs help standing. I think that's a nice touch though a result of the transformation.
I have 3 of these now and all 3 have bent handles..
I'm starting to think I might design some show accurate weapons to go with these toys..