I'm in the same place sort of, and Golang and Julia seem like the obvious higher-performance transitions from Python. What about Rust makes you consider it so highly?
* network effect / hype
One of the main reason. It sounds lame, but I can justify to a customer re-writing a project in Rust because they've heard about it and they will be able to hire people who have either used it or at the very least will be interested in learning it. Also, they network/hype means that we are going to see good libraries emerge fairly quickly.
* multicore support
A year ago I was ready to move to OCaml, bought books, started to learn it, but the multicore situation was worse than python. Today we hear that "there is a good chance it's going to get multicore support". In Rust, it's already there, and it's not and after thought.
Rust also happened to be slightly faster for most things according to micro-benchmarks, but we know how reliable those are, and it's we're not talking order of magnitudes here, although it is early and we can hope it gets even better.