>>7290514All in all, Saturn is a solid RD, though not a must-have by any stretch. Aside from my issues with the head not staying on that great (which I strongly suspect is just a tolerance issue with my figure and really isn't that big a deal), my primary gripe would be how the forearm is missing the extra rotation joint found on the Ingram & Type Zero.
The Saturn mounts the shield directly to the underside of the forearm, which is how other shield-carrying RD Labors do it. But, both the Ingram and the Type Zero allow the forearm to be rotated independently of the elbow joint. This lets you retain full poseability no matter how you have the shield oriented on those figures. The Saturn is lacking this forearm rotation which makes posing with the shield a little more awkward compared to the Ingram & Zero.
Nonetheless, if you're a fan of the design I think you'll be happy with the RD. If you're just looking for a Labor to tangle with your Ingrams though, I'd recommend Zero or Brocken over the Saturn.