Too many FOMO posts about zanki etc. If you do use it, it depends on curriculum. The best way to use it is not to learn from it; for example, you shouldn't just unsuspend 250 zanki cards then that is your primary source. What you should do is use third party resource: read fa, watch bnb or pathoma, etc. THEN u unsuspend the cards associated with that. This way, you do the cards MUCH faster, and it's an extra "pass" of stuff you just read/watched about.
And, don't do the thing where you search everything based on class powerpoints. That's a huge waste of time, takes too long. Ik for some school (mine especially), the board relevant material is so sparse that when my school teaches something that is board relevant topic they miss about ~15 percent of it, and focus on some minutiae. This is when watching boards and beyond will be super helpful especially their physio/anatomy sections of certain blocks, or reading first aid. pathoma i find doesn't cover most physio you need, but their path is beautiful. But I didn't even do that first year, and it's not a big deal, because I can just spend 1-2 hours watching BnB now and it's like I never forgot em.
If your curriculum doesn't seem feasible for you to do that first year, OR you don't want to spend 500 dollars for some 2 year BnB subscription (which was probably the major reason zanki was frustrating first year) then just wait until second year. Unless you are super paranoid for no reason and you think you can won't burn yourself out while you do 500 reviews every day during your M1 year AND summer, then you should do the "ima unsuspend everything on zanki based on what block we're on". If this is you, more power to you, because that seems like hell.