What parts does Stalla do poorly on L3?

L3 survivors and retakers who used Stalla last year… There was a thread last year that said that Stalla was good for L1 and L2 but not so strong on L3. I did the Stalla course and am now reviewing, but would like any guidance people can offer as to what parts to dig into carefully to make up for weaknesses. I feel like there’s enough time to do a very good review still, but I do want my review to be smart. So… folks who used Stalla for L3 last year… what would you recommend my being sure to review with the CFA books?