I tried a TADA68 with the standard high-profile aluminum case at a meetup.
It was amazing. The best-value aluminum case on the market, hands-down. It is better in every way than the stock plastic case. Better typing feel and bottom-out, better typing sound and acoustics, better stability and better comfort.
I recall it as being super-thick and sturdy compared to cheap aluminum cases. If I wanted to improve the typing feel of my TADA68, the first thing I would do is use the big aluminum case.
The low-profile case is also good. You can look up photos of builds with that. Someone did what I was thinking of doing, Zealio V1 in a dark gray lo-profile case with Honeywell keycaps and white LEDs. It looked spectacular. I’ve never typed on one, though.