G1 - long lasting after 8 months still working. G3 - lasted only for 3 months, if you're not lazy to re-apply, great. C1 - well after a week beading disappeared, this was probably my application mistake ... P1 - nice all-in-one polish, for a black VAG paint I would use the P2 as well for hologram free finish C5 - great on the rims, long lasting and nice beading, very easy to apply. I1 - keeps water away from soaking in to the carpets, seats, etc... C2 - easy to apply, lasted 3 -4 months on my car... That's about all I've used so far other accessories - wash mitt, cloths, etc.. it's just some OEM products, you could probably buy them cheaper somewhere else.
In my experience: P1 - less cut than M105 but finishes down a bit nicer than M105, works quite well for an AIO C2 - spray on an applicator and wipe it on the car, simple as that (it didn't last the claimed 8 months for me, closer to 3-4 months like spx, I did spray a qd version of it on the car every few washes too as recommended but it didn't live up to the hype) L1 - don't find it any different than Leather Masters product, relatively inexpensive WM1M Merino wash mitt - incredibly soft, make sure you check it frequently and after it dries, I always seem to have random junk stuck in it MF1 ZeroR microfiber buff cloth - absolute junk, feels rough, you can clearly tell the label was ripped off with the loose, hanging threads, you can buy higher quality ones from Canadian Tire
C1 still going strong after 1 year. Dirt just don't stick to C1. G1 and C5 still going strong. Nothing imo can beat C4.