I never understood why omni/mecanum wheels hadn't replaced every wheels on everything ever. It's so cool, functional, and cool. Apparently it's something every real roboticists know from having handled it, that they don't work on slopes. So it stays on my bucket list too.
Lol. I want to have a reason to buy that. It's obviously been built to try to cover a lot of use cases, being capable of returning to charger remotely, working as a low-end camera plaform for temporary surveillance / notifications of movement, mic/speaker etc