What are your thoughts on 10R80 reliability?

What’s your experience with the 10R80? Have you noticed any reliability problems or harsh, clunky shifts? I’ve had a few issues with mine that I’ll mention in the comments.

I live in a condominium, and when I’m driving at around 13 km/h, the transmission skips second gear and accelerates to 17 km/h to match the RPMs with the gear. This is really dangerous in tight spaces like a parking garage. Has anyone else experienced this issue? Also, when I accelerate hard, the shifts are very clunky when I floor it.

The 10R80 transmission is generally reliable, but shifting issues might be due to low or dirty fluid, software problems, or mechanical issues.