no, sori, haven;t heard about that brand. does your tapping noise go away once you've driven your car for bout 10 mins ?
i was using mineral oil before this ( and adding oil treatments ), and i've found that my engine is so much heavier ! read about how some ppl uses either semi or full synthetics to 'wash' the engine of all the gunk. maybe you can try that approach lar. i'm doing it now...and i'll post up my results once i've changed my oil for the 2nd time. currently on Total semi-synt...it's not bad, but still taps everytime i start the engine.
lots have been said about Q8, pretty good, also apparently Motul is not too bad aswell. alternatively, selenia solves tapping noise for alfas....