The build quality is surprisingly good, not quite as good as Logitech – but still good.
There are a couple of downsides though: there's no "hyper" speed scrolling wheel, a feature I quite liked on the high-end Logitech mice; and there's no extra thumbrest button, which is handy for extra shortcuts.
It also only has a Micro-USB connector for charging, so in that regard it's more like the Logitech MX Master 2 than the newer Master 3.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!