How reliable is it? Everyone I know where I work has problems with their Thunderbolt breakout boxes.
It was rough at first when I picked it up last year. However the driver updates in Big Sur seem to have fixed my complaints, particularly with the MBA that almost never worked.
It works pretty well now. I unplug my work laptop and swap it for my personal one when I want to work on personal projects, and things just work.
My biggest complaints about this dock now are that the fan is loud, and it only charges at 60w. I worked around the noise by attaching it to the underside of my desk, so it's pretty hard to hear now.
No reliability issues whatsoever, despite me switching the dock between my work laptop and a personal laptop almost daily. The dock is connected to a bunch of peripherals, as well as 2 external monitors (one 1080p, another 4k@60hz). Only one cable going out of my laptop (connecting the laptop and the dock, as the cable connecting to the dock also charges the laptop at the same time).