Fixed/annual v Variable/flexible service

Hi all,

I’ve been searching for.a topic already out there on this but can’t seem to find one.

I picked up my 2023 kodiaq a couple of months back and the dealer wanted to change it from flexible to fixed service, I assumed to make sure I went back more frequently. I always liked the flexible on my superb as it seemed to get the most value from a service so kept it on that. Some mechanics I’ve met in the past have said it’s a gimmick and you should always service every year or 10k miles.

Is there a topic on this already that gives pros and cons?

Any thoughts?