The things I like:
-Distance between measurement and display. Measurement in the engine compartiment of a car, at the cold roof, in a noisy room, visualisation somewhere nearby.
-It has a graphic time-display, and I like that they still call it multimeter. Twitteristic dreamerfabricants would have called it a Scope.
The things I don't like/ don't know/ want on it:
-Magnet sticked to it, so I can fix it in the engine bay.
-Clamp or hook, so I can attach it.
-2 Holes in it, or at the side, so I can screw it onto something.
-µUSB port for charging/continuous measuring.
-multiple devices on 1 smartphone, one device to multiple smartphones.