I've always been a big fan of Angenieux's lenses. But I love this family of lenses simply because of how light they are! At 4.2 pounds, you can throw this puppy on an Amira, RED Dragon or Alexa Mini with a simple shoudler rig, and you've got a nice handheld setup. The one thing that I do not enjoy about the competitor's servo lenses is how front heavy they can be. And with Optimo's you don't really have that problem.
Optimo's are popular on ShareGrid and I'm not surprised. A trusted brand, supreme performance, and amazing functionality.