One was a 'dongle-style' one, I forget what brand, that I got off eBay. It worked... sorta, but it would get really hot and the screen would sometimes just go blank and require a full reboot of the computer to get back (unless I unplugged it).

The other one was mostly okay, but didn't have many ports and would also have weird issues when my computer was in clamshell mode — the Elgato Thunderbolt 3 Dock. It was mostly okay, but every week or two there would be a weird issue that I just don't see using the CalDigit model.