I don’t love free wargear (because there will inevitably better or worse options when everything is a straight swap whereas with points cost you can balance finely), but I can see that it makes life easier.
Fixed unit sizes, however, are supremely shit. All in all totally ripped the variety out of list building, which was one of my favourite things about the game. Lists now will look mostly identical.
I think it’ll actually work out fine in the gameplay, but it makes list building much less fun.
There’s also the aspect of kitbashing models because they don’t have an official model. Some of my best models where kitbashed because GW didn’t have a Khorn Lord with chain axe riding a Juggernaut and it was fucking terrifying to have 17 rending attacks on the charge.