Leatherique and Leather Masters are two differnt product lines. Both are boutique products meaning not much if any of a brick and mortar presence.
You can find both and reviews of each on Detailed Image or Detailers Domain both vendors here. In addtion Autogeek carries both as does Amazon. I'd price shop and see if the vendors will price match if found lower.
Either are good products but remember conditioners for standard automotive leather are really a placebo. See TOWGT's response and digest his info first. Basically a weekly wipe down with warm water and a mild soap solution will keep them clean. Biannual deeper cleaning will definitely help and products like mentioned above will be needed if stains like dye transfers form jeans occur.
Congrats on the car, red leather looks really nice when cared for. Good luck.
08 E90 335i Monaco Blue Gray Dakota ZPP ZSP Heated Seats CA Step w/Paddles iPod