I think Saru is the best that came out of Discovery. I think the character will rank high in Trek’s Pantheon for a long time.
Spoiler
The “Look into my eyes and tell me if you see even the slightest glimmer of doubt” scene alone would ensure that.
That’s a testament to Jones’s acting as well. I thoroughly enjoyed Action Saru in that scene.
He is so good at getting subtle facial expression through the prosthetic. Really remarkable.
His character (and species) was the best part of Discovery.
He did such an amazing job.
The arm swing is such a subtle thing he does, yet it really sells that he’s an alien who’s built different than a human (or most other humanoid aliens in trek which are too human like)
IIRC, the arm swing he does is because of how he has to walk in his foot prosthetics. But you are right it’s a subtle addition that sells the character