My experience with a CK/Lionsteel Shuffler ist that I bought one from the first batch from an individual on this forum, sharpened it to 15 dps on the Wicked Edge and then EDCd and used it on food, cardboard and wood for about a year until I lost it a couple of weeks ago, at which point it was still cutting well.
I don't have the means to do scientific comparisons, but all I can say from my experience, is that all other knives with comparable (thin) geometries I could ever get my hands on didn't even come close to the edge holding of that Shuffler. Because it seems that there are knives on the market with corrosion resistant "super" steels and thick geometries, or thin geometries with more traditional, less abrasion resistant steels. Until CollectorKnives and Lionsteel made these Shufflers and related models. I can't say if edge holding was better than my Benchmades and Shiros in M390. It certainly wasn't that much worse that I would have noticed.
Given my experience with the edge holding, it is my opinion that implications that people are in general not getting their moneys worth when buying these CK/Lionsteel collaborations is far off.
No, I can't tell you at what hardness mine was. If you can point me to another folder for about 100$, with one of these modern PM steels, a blade not thicker than 2.5mm, a thin grind, a pretty and utilitarian design, please do, I'm eager to check it out.