Not sure exactly which one you mean.. I have one of their folding link locks.

It is in a pouch on a water-bottle boss..labeled ..Bordo X plus

And I also have one of their chain locks, some times I use both.
sometimes the chain lock wraps around stuff better..

IDK about Rating.. BikeRadar did destructive tests when they
reviewed locks, then say what it took to defeat the lock.

Other than buying 2 and seeing what it takes to destroy one yourself,
All ratings are opinions.. of strangers..