I have the HB0603 JSAUX dock. It had some teething issues, but I think this was a combination of my particular TV and the older versions of SteamOS, rather than the dock. In the last few months it has been fine. Occasionally I have issues going between gaming and desktop mode while docked which require me to disconnect/reconnect the dock but again I think this is an OS issue. Most people probably don’t bother switching between the modes so often either!
I have the HB0603 JSAUX dock. It had some teething issues, but I think this was a combination of my particular TV and the older versions of SteamOS, rather than the dock. In the last few months it has been fine. Occasionally I have issues going between gaming and desktop mode while docked which require me to disconnect/reconnect the dock but again I think this is an OS issue. Most people probably don’t bother switching between the modes so often either!