Here's a concise review by Audioholics:
https://www.audioholics.com/blu-ray-and-dvd-player-reviews/oppo-bdp-83
Don't be dismayed by the distortion comments. Those are simply meaningless in the bigger scheme of things - as in - measured on the analog outputs.
And you don't lose anything dedicating the machine to 2-channel only.
I've been an Oppo fan for years and they are solid.
They are headquartered in Silicon Valley ... regardless where the machines are assembled.
Buy with confidence that you'll get a performance built machine.