I would have given 3 stars if the price was not that astronomical for just 59ml of lube.
I've been using waxed chains on all my bikes including my towny/commuting bike mainly because it remains so clean and never leave the dreaded black mark on your calf or (worst) jeans and office trousers.
After 2 straight months of rain I could not keep up with my commuter chain that I had to re-wax every weekend (I cycle 10km to work every day) and so I chose to give this lube a try.
I cleaned an ultegra chain using my regular method : shaken in hot soapy water jar, then in a jar of white spirit and i repeat the cycle two times. Left the chain dry one full night, applied the lube as stated, left it to dry another night and then wiped it with a rag.
First red flag --> the rag is now permanently blacked from the product with deep black lines.
Second red flag --> after 50km of perfectly dry weather (-3°c average), the chain is black again. I whiped it and and, again, long black lines on the rag.
Positives : so far (50km) the drivetrain is silent and the chains feels smooth like a waxed one.
Cons: If my jeans touch the chain I don't think they will ever recover from the stain...