i'm not too much of a fan of the current building mechanics, but that's probably because i'm too used to how blockland controls. honestly idk how else you could do brick placing controls as well as blockland though.
and also, the idea of using absolutely any color you want i'm not a fan of either. I liked colorsets because you didn't have to mess around with sliders, and you can easily get back a color that you used previously really easily and quickly. The idea of client-sided colorsets, ones you can download or create yourself is interesting though, as it's potentially possible to go on any server you'd like and use whatever colorset you'd want, with access to the sliders still if needed (and no color limit!)
plus right now i'm very concerned on lag/slowdowns. the grid loading in that last video seemed slow and i'm concerned we can't, like, place even more bricks then blockland can atm.
those are all my concerns right now though