aZZ: there are many paint protection product and company doing the job, different honda dealers deal with different companies, usually the locals. but Ming is a very well known company for paint protection, and interior protection. It has branches all over australia.
In my experience, I find paint protection with teflon definitely provide extra protection. My friend's dark green Gen 3 VW golf VR6 had it done, it hardly has any swirl mark, but mind you my friend wash his car regularly, he also uses Zymol wax. (maybe it is Zymol doing the trick?)
With regard to Leather protection, yours will be ivory leather which is more prone to stain, as many other members pointed out, they have stains from their jeans and black leather belt etc. so maybe the leather protection may prevent that from happening.
Rust protection (underbody) probably will be benificial to you since you are down at the coast. especially if you intend to keep your car for a long time.
Bat's poo is so detrimental, my colleague's Z350 coped one right on the middle of bonnet, and it screwed the dytona blue paint badly. if he has the paint protection like Catch's father's Camry, then his bonnet should still be spotless.
If you consider getting it done, find out the name of company and product your honda dealer use. Maybe H22a accord can give you more info to help you make decision.
