I
I have three main gripes about this toy:
+ I can't figure out a way to make the shoulders lock into place in robot mode. So they get easily displaced during play.

IMO this is the toy's greatest flaw.
+ Ankle articulation is not the best. Makes it difficult to put the toy into some more dynamic poses.
+ The chest is quite wide which inhibits some arm movement across it.
Overall I find this to be a satisfactory toy, but it has its flaws and diminutive size. As a result I'd only recommend getting this toy if you can get it at RRP or preferably less.