This got rave reviews when it first came out.
Sadly, those reviews have come to accurately say more about the lack of effort put in by some software reviewers, than about the product being reviewed. Vantage was also seriously expensive; reviewers should have taken more care, or been more honest, in identifying problems with vantage.
And yet, by most accounts, the killer app potential is there. It'd be great, even now, if Simon could perfect it.