i think it depends where you are in your progress and how you best retain information…
if a lecture/classroom setting is best for you to learn and retain, then yes, do it 100%. keep in mind though, the Scweser courses etc don’t really “teach” the material (i.e. those instructors are nothing compared to the king Peter Olinto from the old Stalla days).
if you don’t learn best in a classroom/lecture setting, i think it is still best to buy the 3-day review, but do not attend (hear me out). i am a retaker. i bought the 3day last yr but did not attend - i preferred to go through it on my own at my own pace (i space out in live sessions). you get access to a video recording of a live session (with the ability to pause and go back, or skip sections you’re great on, which is AWESOME). you will get a book with the slides they go through, along with another book of practice questions (which is great also). I went through the 24hr videos over the course of my final review the last 2+ weeks.
it was GREAT to skip through sections that i know cold (saves hrs of time to focus on stuff you don’t know), and it was GREAT to be able to rewind and review 2-3 times a topic you need to brush up on. plus, he gives some tips on “what to know” for different sections.
i would highly recommend it… however, to manage your expectations, please note that it is solely a REVIEW - if you are clueless on a topic or whatever, and might be thinking “oh now i’ll learn currency swaps, or instead of re-reading fixed income i’ll use the lecture,” they do not TEACH the material.
hope this helps. best of luck in your studies.