I installed an Autostop Eliminator in both of our 2020’s. I can tell you it does the job very well with no issues. When I took one of them in for an oil change, I asked the Service Manager about it as he plugged his Bluetooth dongle into the truck.
He could see a code which indicated “Stop Start ditch malfunction” and has seen this before which is the tip off there is an eliminator installed. I asked if that was a problem and his comment was “Not really unless it shorts something out they can attribute to the Autostop Eliminator” and then the repairs are on my dime.
He also said they are becoming quite common and the prevalent brand is Autostop Eliminator. I asked if he has ever seen an issue with them and his response was no.
As for the two we have, they have worked well for over seven months and zero issues. Installation was less than five minutes and is as simple as plugging network cables into your laptop. No tools required, no panels to remove, very easy to install and very easy to remove if you want to do so before taking your truck to the dealer.
I helped a buddy install one in his F-150 and zero issues thus far too.
The beauty of the Autostop Eliminator is you can press the Autostart button on the dash to disable the stop/start feature or press the button again and it will reactivate the stop/start feature. It doesn't permanently deactivate it as you can always turn it back on again...the difference is it won't come back on with every start cycle...instead it only comes on when you decide you want it active.