Saves You the need to solder in wiring for the voltage, as this plugs between esc and battery. This is permanently attached to the planes ESC - but for some unknown reason the thin wiring for the voltage telemetry is in the part of the adapter that You release everytime You swap battery. It's a pity they didn't put the wiring out of the OTHER end of the XT60-plug, and I can really see no reason why they didn't do it the obvious way!
The thin wiring for temp will often need to be longer, but soldering in a piece of wire is a blast...but then: There is no reason to use this rather than the simpler temp/voltage telemetry unit. This piece of kit is rather big!Nice preassambled connector - but I will not buy again - it´takes to much place, I will solder the wires directly next time.