I use Z2 + ZFX & the Z7 wash. It gives an amazing shine and requires surprisingly little elbow grease to apply and remove. A little goes a long way too. My last bottle of Z2 lasted almost an entire year. Its a little pricier, but IMHO its well worth it.

I tried the Leather in a Bottle on the seats as well. It does a good job of cleaning & conditioning the seats but doesn't quite smell like leather to me. I'm up in the air whether I'm going to get another bottle of it when I run out.