I’ve used this for some time and would recommend it. If there is any other lube on the chain at all it will gunge up and not dry out, attracting grit, so you need a really clean drive train to start off with. A solvent cleaner may be best to do this.
Apply the Clean Ride sparingly, and wipe off any excess, or you can get lumps of wax building up.
On wet rides it can wash off pretty quickly compared to other lubes. I gave up using it on the commuter as it could need applying twice a day in really wet weather (and it’s not cheap), but on the fs which generally gets some tlc after each ride it is ideal, espescially this spring as we’ve had no significant rain here in the south east for months.
I can’t say whether or not it will make your chain last any longer, but it is an easy way of keeping a chain free of grit or grinding paste with minimal effort, as long as you don’t mind applying it a little more often in the wet.
One more thing, don’t apply it right at the start of a ride as it needs time for the solvent to evaporate to work best.