A couple of brief thoughts.
Dibond is lovely -rigid and flat, and the back is a piano gloss, which has its own wow factor, but (the real stuff) is expensive. If your mounting technique is not bullet proof (or the gremlins are in town), then any mistakes you make in applying adhesive to the ACM can leave you with more or less unusable substrates. The (hideously expensive) Drytac Facemount adhesive has the advantage that if you muck up the substrate coating, you can peel the adhesive off before it's cured, then clean up the substrate with IPA, and try again. I've had almost* no success cleaning off any of the self-wound adhesives from ACM.
If you're using an SW adhesive, then you can test in advance that the rollers are set up true, by applying a length of the adhesive to the release film of the DiBond. Means you sacrifice some adhesive, but gives confidence that the laminator is running good.
Platine Rag is one of those papers which fracture when cut - I don't offer borderless mounted platine prints, as they almost always exhibit tares in the edge. If anyone has any suggestion of how to cleanly trim them down, I'd love to hear details.
Having said that, it is sufficiently robust, soft and forgiving, that minor flaws in the material prep probably won't show. Major flaws such as bubbles and waves probably will.
* you can clean off adhesives such as mediatac using methyl ethyl ketone, but it is _Truly_Evil_Stuff_. Seems to melt many plastics, as well as vinyl and butyl rubber gloves.
You can also make a reasonable cleaning job using IsoPropyl Alcohol, using the soak, scrape, soak wipe, soak wipe process. Not fun at all on a large sheet of substrate, and normally reserved for Friday night / weekend work (when you can't get any more clean material delivered until Monday)