They're excellent !! I've used them on my cars and bike for years. I haven't found any that don't do exactly what they claim. As you say, they are a bit pricey, but you get what you pay for.
Funny that a local bloke has just sold me some Autoglym, and swears by it. It is Liquid Hardwax 1 a 1ltr bottle for £12.00, also bought some other polish off him as well, but not picked that up yet..
A lot of professional valeting companies use the Autoglym range of products....when I worked in the motor trade the stuff used to be delivered to us in 25 gallon drums !! It is pricey but you get what you pay for....it is good quality gear !!
used by Aston Martin, Morgan and some other car makers.
Recently found some Autoglym wheel cleaner - again endourced by Morgan and others. Cuts through all the crap on the back wheel and makes it shiney without any serious work! look here
Gina
03 America - Pretty stock - except the TBS wheel...
06 America - missing, presumed in bits. With it's TBS wheel...
09 America - It's very blue....