Got two pairs - only had one issue of a cable breaking when I stuffed my leg in the wrong way - replaced without quibble under warranty by Motohaus.
Only ever had them above minimum once and that was going through the Alps in December last year at stupid o’clock in the morning.
Only “issue” in use for me personally is if you link the insoles to them then they are on the same level as the trousers. Which for me can be shit as nerve damage/circulation issues means sometimes I want my feet toasty.
Hopefully Motohaus have taken onboard the stuff they asked from me as a long term user in their newer versions and added a dual controller on the trousers, put it in a better place, moved the junction box from the front hip, etc.
Minor stuff but can be a pain.
Have had Exo2 and Gerbing but the Keis is far better and warmer.
One thing to note if you use the jacket - with the new Rukka stretch cuffs it can be uncomfortable as they are bloody snug but useable unlike the Gerbing which you struggle to even get under them.