I'm not impressed. I was told if I paid a large lump sum (to bring my usage from 60% to under 10%)my score would go up 40-80 points. I paid this amount, but so far only 1/3 has posted. My score went up 12 points and I re-simulated. Now the projection tells me that when the other 2/3's of my payments post, my score to go up from 0 - 20 points.
So, I go from a projected improvement of 40-80 points to 12-32 points.
For the simulator to work, someone would have to actually understand the vodoo that is the FICO scoring system. If it were science, someone that understood the system could perdict results. If FICO can't do it with the secret code (as shown by their simulations) who can? . FIOC clames to be alot of things, but so do most canidates running for politial office. They both claim to be Mom and Apple Pie, but they usually come up pretty short. Both greatly effect your life, and usually disapoint you. But FICO keeps the press out of thier closets.