Not really an upgrade besides making it wider. All other design updates are overglorified.
The brass hexes are nice and the larger 1.5mm pin is great. I expected the actual shank of the axle shaft to be a slightly larger diameter as well and it still utilizes the small 0.5mm pin that the portal gear rides on. I feel as if the kit should come with the 1.5mm pins for the portal gear and the wheel hex, the shank of the shaft should be a tiny bit fatter, I can always drill out my wheels holes and put a bigger wheel nut to match. I had the evonpro extended axles on my arktos previously snd they bent while having my other rig on the back with a trailer attached and trying to crawl. Not really an upgrade at all. Evo pro extended shafts are the same difference. If you use brass wheel hexes with the 0.5mm pins they won't strip.