No firsthand experience. Looks like just about any other inner/outer “battle belt” setup. Only thing that stands out to me is that their “Operator 3.0” belt is 2” in width, both inner and outer.
Industry standard is 1-3/4” for inner/outer belts due to compatibility with belt loops on most pants. Common pants barely accommodate these, very little will fit a 2” inner belt, you’d basically be limited to “tactical” stuff, which may be enough of an annoyance to drive you to choose something else.
You could always use a more narrow inner belt, but that’s got its own headaches.
The 2” outer belt makes sense when you’re using the exterior molle, but frankly, I see no point in doing that for any molle-on pouch on these inner/outer belts. It imparts all the weight onto the stitching holding the molle to the core of the belt, it wants to tip and fold the belt outward.
One-wrap is hands down the best solution, it’s cheap, solid, and practical, so I don’t see any point to spending extra for a belt with molle I’ll never use.