Thanks for the amazing feedback! You've hit pretty much every theme that I've seen brought up in different ways across other playtesters, and it's all definitely worth thinking about--especially the "back of the grid" control issues and an indication of how "optimal" a solution is, given that there are several in many cases, for the hyper-optimizers out there :)
I'm curious what you mean by "more snappy"? If anything, I feel like the way blocks snap to the grid when hovering over it is as snappy as it could be / too snappy, in my opinion. Maybe you mean snapping in place before even reaching the grid, when coming from outside? That could be interesting to experiment with.
Thanks for playing!