If you just use it for music and are happy with bluetooth, it's understandable why you don't see the benefit. Heck, do you even need a screen at that point (barring a backup camera)?
For maps, having up to date maps is an enormous relief compared to relying on the outdated maps that came with your car (at least in my experience).
> When I tried Android Auto it actually took over my car's infotainment system
Yes. I prefer it that way. The car's default infotainment system might as well not exist for all I care, since I prefer the Carplay experience.
> and made my phone slightly slower having to drive another screen?
For maps, having up to date maps is an enormous relief compared to relying on the outdated maps that came with your car (at least in my experience).
> When I tried Android Auto it actually took over my car's infotainment system
Yes. I prefer it that way. The car's default infotainment system might as well not exist for all I care, since I prefer the Carplay experience.
> and made my phone slightly slower having to drive another screen?
I haven't noticed this problem.