Plenty of better known, more proven brands about, to be honest.
If you're willing to pay a detailer, go to a certified guy and opt for the GTechniq CS Black or Gyeon Q2 Mohs+ treatment for ultimate, long term protection, or I'm sure Ricey can suggest the best CSP products and how to use them (or just pay Ricey to use them, he seems quite handy with the Nano Sealant. ).