I really really really rate their stuff, hence why I endorse it so much. It all works really well together, so pays to buy the whole set of their products for best results. As for their desire wax, it's absolutely brilliant. It sees 6 months durability on a daily driver, and the finish it gives speaks for itself - in my opinion it's definitely worth the £120.
I am working on something with Auto Finesse, I don't want to give away too much information but keep your eyes on our news thread for more information soon...
I honestly have no idea about number plate pricing - I paid £700 for mine, yet for my dad to get F6 CJB the price was £1500 - I have no idea how they work it out.
Bertie