Nevermind about the guarantee, just saw on their website that they will compare it to your previous score (if you have one) or your first CAT. I'm an idiot.
But would still appreciate input about whether or not you guys think Knewton would help for more "advanced" topics. 45Q/41V was my breakdown on my actual exam, and I know I need help on Quant and can do better as my actual quant score was lower than my Q score on my 2 GMAT Prep tests (49 then 48), and lower than most of my
manhattan CATs (44-47). My verbal score was lower than one of my gmat prep tests (41 and 47) and lower than all of my manhattan tests (between 42 and 45).
I figure Knewton can't hurt, as I would be happy either way to have a 760+ or a free course, but my question is if it would be worth the time since they track if you have done all the videos and they are a total of 39 hours. I plan to retake in a 1-1.5 months and also start on my apps at this time, so I question the return on the investment of time into the knewton videos in addition to my other planned prep.