I like that it has four USB Type A ports. This would essentially take the place of a Thunderbolt 3 dock for me, which is already $200-$300. I'm considering getting one.
You should wait and see what the performance/reliability of these are. In almost every case, the GPU completley uses up the Thunderbolt 3 bandwidth, causing lag / reduced performance of the GPU and peripherals.
The Elgato Thunderbolt Dock comes with a software utility that gives you a "Disconnect Dock" menu bar option, which unmounts and unloads everything in one click.
