I like the interior look... Simple, clean, not cluttered. I do think a small screen behind the steering wheel with the main details could be included in the M3/MY lineup, much like the MS/MX.
I'm not a fan of the snub nose on the M3/MY, I like the look of the aftermarket front bumpers that have that bumper line straight across, but I as I understand it, every aspect of the exterior design was for efficiency.
I also will say, that if you are not in the FSD beta program, the interface is not the best. I've been in the Beta program since I bought my M3. So, perhaps the big issue a lot of people have with the Tesla "OS" is that. The next software upgrade should bring most of the FSD Beta features to the regular OS.
For example, FSD Beta has this: