CFA L1 with finance background while working? Is it worth something in IB?

Hi all, wanted to know if anyone has done and passed the CFA L1 in three months while working +/- 70h a week with a finance background?
Also wondering if it means anything in IB. Looking to lateral from ER to IB and know the CFA is worth more to ER however doing it shows that I can commit time and effort in progressing my career. Any other tips on how to maximise my chances of lateraling to IB is appreciated