The 600 is exactly what I wanted the 440v2 to be in terms of marginally thicker midsole and overall feel. The heel is slightly more secure to me and it's a razor thin edge mostly decided by the 600 supporting Knox and the colorways have been pretty nice for the most part. The white 440v2 I've seen have an off white hue to the mesh that is fine, but I don't love, and I haven't loved the black and white colorways as much.
I think both models have something over other brands. They're thin cup soles that have uppers that don't bag out and they last really long with consistent flick and grip the entire time. They definitely last longer and although the midsole is basically nonexistent they skate better for me than lots of other current cups. Sambas were thin, but terrible durability, Tyshawn's were fine but I didn't love the look of the chunky sole, I've not liked any Sole Tech offerings I've tried recently (Figgy, Reynolds 3, and the KSL), and haven't messed with Lakai recently. Crockett Lows and highs skated well but had horrible durability and I hate the Vans insoles. I know people like some other newer Vans, but the appearance just isn't for me. Somehow the heel protection is worse for me with PopCush than a minimal NB with a FP or whatever brand insole I randomly choose.
I fucking hated the 480 and 800, never again. Love the look of the 480 and wear them as civilian shoes. 1010 are realllllly nice, but I didn't skate all that great in them. I'd skate them again in the future.