I did my wheels with the Nanolex. Wash, de-tar speck, clay bar (particularly the inside - heaps of muck in there, even after washing and they appear clean), paint chip repair, polish - then Nanolex. Very hard to tell if you've used enough when you're putting it on. Went through a cotton pad so it wouldn't hurt to put a few more in the kit. The cleaner seems to be just isopropanol and you go through it, so it'd be wise to get a separate bottle of that as well (just the generic 1 litre isopropanol).

Pity they don't sell just the sealants by themselves and in bigger bottles as I don't think it would do the amount of wheels the site says.

I haven't had mine on long enough to tell how durable or long lasting it is. Puts a nice shine on though. Even did a wheel on a 1998 car and it came up good.