Black Plastic, when done well, doesn't bother me. Shiny black plastic (Piano Finish) looks cheap and only serves to collect fingerprints.
On the other hand, I can take or leave the faceted glass controls. My wife recoiled when she saw it and found it garish. She wanted the leather dash though.
Personally I liked the ceramic controls better and while I have them on my G30, I wouldn't have paid for them if they were not part of a bundle.