You've owned a toy for 9 years that you've never transformed? The little tabs are fragile, I did end up snapping off one of those, and the shoulder panels are prone to falling off (but are easy to put back on). But the transformation is a combination of being heinously difficult/complex and counter-intuitive which leads to it being more frustrating than fun to transform. Other toys like Big Convoy, BT/ALT Grimlock/Wheeljack and RotF Leader Optimus Prime tend to suffer from this. Toys like MP Ironhide/Ratchet are complex toy, but they're intuitive and fun to transform. All the post-MP10 MPs are generally fun and intuitive, which has possibly contributed to the rise in popularity in this line (which translates to TakaraTOMY producing more figures to satiate consumer demand).

P.S.: This stop motion video shows how MP5 transforms (both from gun to robot then robot to gun). This poor sod's MP5 has that ugly orange plug in the barrel, which is another reason why I'll probably pre-order MP36 directly from a Japanese dealer. I don't want any barrel plugs.