I used Meguair's Gold Class on the seats I sold to pnwdawg and took some before and after pics 'cause I had planned to make a thread but forgot. Here is what I got.

Side by side, passenger seat on the left hasn't been done, driver seat on the right has.



Passenger seat before:



Passenger seat after:



I used their gel stuff with a foam applicator pad, it is very easy to apply, then buff with a regular terry towel.