It's incredibly sturdy in almost all poses, it's got phenomenal articulation, and Hasbro really
slam dunked this one. Outstanding figure, the Separatist troop builder we've been waiting for, for years now.
Buy 50.
Now they need to do the regular battle droids this way.
One thing I will say, and I really have to nitpick to do this, is that where the head meets the shoulders, there should be more "material" there to provide a smoother transition and "no neck" look to the droid. The body should also be slightly wider. You can see here:

But, the figure is
tall and scaled correctly this time, it's nicely articulated, it's got a great likeness except for what I pointed out above, and it's sturdy. At the risk of being repetitive, I'll show the comparison compared to the previous best SBD version we had:

What are the previous SBD versions good for now? Cut them up into limb sized pieces and stick them in some sand in your Geonosis and Kashyyyk dioramas. That's about all they are good for now.
Pass on Mace Windu, and stock up on your SBD Separatist army.