Yesterday I completed my first test riding in Auto on the same route I rode last week in “manual”. This was a 30 km ride, primarily on paved road and a short portion on gravel. The only difference between the two rides is that some of the gravel road was ice covered on my second ride.
the Auto ride is very smooth and a bit simpler since you only have the rear derailleur to think about.
the downside is I found that steeper and longer hills are more effort in Auto. I did not feel like I was getting the pedal assist 4 or 5 that is such a huge benefit of ebikes. In addition, auto used significantly more battery than in manual.
Although this is a minimal test i will be going back to the manual mode