My experiences with their tune has been great... my experiences with their service has been awful.
Last year when I first got my tune, everything went smoothly and they were fast to respond when I sent them my stock file. I loved my K04+ tune, it was everything that APR wasnt.
But then I threw a secondary 02 sensor code which was weird bc I thought most companies disabled the secondary 02... so I asked for a revision, no response. Asked again a month later, no response. Asked again a month later, finally a response asking for what hardware I had, I responded promptly and got no response after.
So I gave up.
Now I cant pass emissions bc as soon as the system is ready my 02 sensor error pops up, and yes I already have an 02 spacer.
That alone wasn't a big deal, but then my flapper motor goes and I installed the delete kit to save myself the hassle down the road. So I reach out to DM, both Sales and Engineering emails, asking for a tune that addresses the cold start issues of the delete... no response.
I get it that they've become popular the last year, but part of that success is the convenience and appeal of the "custom" experience, and that they haven't completely abandoned the FSI platform the way APR has. BUT if they cant respond to the emails, or do the tunes fast enough... HIRE MORE PEOPLE!!! Its upsetting that I was sold a custom experience and after they got my initial money I don't exist.