Having a device with buttons that require some force to push, hanging off of an expensive device where the attachment point is a single small high-value data port (if you mess it up repairs will be expensive, necessary - you can't make do without the port - and time-consuming), seems like it has bad idea written all over it. Is there some enormous upside I'm missing? Seems like roughly the same device would be better if the hub and buttons were in a separate box with little rubber feet that sat on a table and had a short (flexible) cable to attach to the iPad.
I wonder why they stopped there, with barely three buttons, when they could have added not just volume up / down as well but why not a proper numkey pad for those times when you need to crunch numbers out of the usb c port of your iPad