I've used it in the past, for winter OCIs (despite it's slightly higher HTHSV than most 5W-30s), to try and fend off fuel dilution, and cold running with it's phenomenal TBN (one of THE highest starting TBNs of ANY oil at the time I was using it).
I also figured I could push the OCI pretty far with this stuff in the sump, and I did at times go > 10K on a LATE FALL-WINTER-LATE SPRING OCI.
I never did a UOA on it (still don't think they are worth it, or tell one enough info), so I cannot give (the limited) data points they do show.