Well, despite the cost of Photo Mechanic, I downloaded a trial version and used it for about a week. It's VERY fast. It generated previews for large volume folders in a matter of moments. Everything is slick and smooth.
So, after a week of using it, I decided to spend the $150. I think it's over priced for what it is, but the speed advantages make it very appealing.
I've now got a workflow setup - Photo Mechanic for DAM, Capture One Pro using Sessions for photo edits, and Luminar, Affinity Photo, and ON1 Photo 10 for stylizing. I thought it would be overly cumbersome to use more than two apps, but it's not that awkward for me.