Like the price point and portability of the base Treedix testers.
Talking about near perfect wishlist:
Some standard hardware with fail-safe power connections a set of fully wired ports like in display-less Treedix USB platine tester version.
On the other side powered and extended diagnostics through USB-C can then be done from any smartphone or pc providing the display and updateable extended software layer.
Bonus for connectivity to some brother label printers.