I have done 3 and 4, and I definitely prefer the air gradient, it is a nice sleek little box that is flashable with esphome making it tie directly into HASS. Will be getting more of them in the near future.

weird still up for me, just cloned the repo locally.

Ratrig v-core 3.1 that I’ve heavily modified from “stock” configuration and still tinkering. Thinking of picking up a vzbot 235 kit to replace my old ultimaker 2+ at some point. I like the ultimaker, but it is pretty dated by todays standards.

On my VC3 500 I use a rapido with a 0.4mm. My default PLA settings are 300mms with 10kmms2 acceleration. I’m not sure about OP but for me the larger build volume lets me kick off a full plate of parts and come back a few hours later. Gets pretty good quality but at that size/weight you do get some ringing on the parts.