Honestly, while I'm sure most people will find it useful, I probably will not because:
1. I'm really lazy
2. A lot the monsters I'd brew out of laziness are reasonably far from confluxes (Glavoid, Orthrus, Rani etc) which really limits its usefulness
3. I'm really lazy
I think interacting with really unwieldy menus has to be one of the worst aspects of the game. Needing to do that for several minutes while LS members pop an NM and drag it over to the conflux sounds as torturous as upgrading atmacites. I think I'd rather just waste the cruor, lol.