i put clazzio leather seat covers on mine, with 1/2 inch of memory foam sewn in, and they are better. The foam makes you sit higher, and for me its better. I never thought they were bad, but now they are def better. Maybe a bit less holding from the sides seeing that there is also memory foam in the backrest. The seat seems wider now, that I'm sinking into less. Still enough side bolstering for me. They look great too.
If you look in the interior mods section at the top of the MK3 forum page you can find photos of them.