There is nothing wrong with it, but looking at the videos of the Gen4, the improvements are quite obvious. Being quite OCD, I had to, late at night take the next step. The main advantages I see are a slightly better micro adjust system and a more robustly engineered pivoting mechanism for the stone rods. Increasing the angle to strop will lrss likely to be missed which can(did) result in strops being sliced a bit. I will let my son have my Obsidian which is a great sharpener in its own right compared to pull thru and electric kitchen sharpeners advertised as the best on the internet. Will update my observations, soon. I’ll have to dull some knives over the next few days.