I used Lexol in all my cars, never was impressed with the result but stayed on the bandwagon nevertheless. I read somewhere, irreputable ofcourse, that Lexol was really a bad idea. I didn't put much into the opinion, but it got me thinking though.
I'm going to try something new and go Leatherique when I finish putting things into order on the car this Fall. I hear multiple back-to-back treatments with Leatherique is a good way to remove a little age from older leather that is still pretty well intact. I also heard that used as such, it is a great wallet lightener (dual-purpose).