Couple years ago I bought and since have been using one.
My father got one about a month after me. We both noticed the difference and was the best bang for the buck. Both trucks are 18s, DRW, & H.O.s.
A few months ago he began to get erroneous throttle codes. We assumed it was throttle body issues so we cleaned it but all appeared fine. Codes and lights continued.
I had him unplug the 9 drive and test. Codes or light never came back. I still have never had an issue.
He kept it out of the system and installed the Banks and loves it. Still no issues anymore for him since removing the 9.
It's electronic, anything can fail.