I don't know about this, sorry. When introduced a few months back it was briefly available for free users, so I played with it then. In my case, I wanted to do an open jaw redemption with two new routes, which were not showing up on BA Redemption Finder at all - so it was more of a casual interest.

I believe the person behind the website is a member here, though I can't remember their username. Perhaps they're able to comment - or it might be worth contacting them?