I've heard good things about Lexol. It's available at VW dealerships around here as well as their own brand (which is Eagle One IIRC)
Leatherique also gets great recommendations, but i've never seen it in a store.
Personally I use the Zaino leather conditioner and their cleaner as well. I can't say anyting bad about them, not greasy or glossy, and leaves my interiro smelling like leather.
For the leather and vinyl surfaces I own (not just in the car) I use Honda Leather/Vinyl protector available at the motorcycle dealership I work at. Since I get it at cost, it beats the snot out of Lexol.
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