I'm generally in the same camp as Esme12. I've taken ACLS (and PALS and PHTLS) quite a few times, but not as many times... You really do need to take ACLS in person the first time or even first couple
times you take the course. Then, if your employer will accept an online course, go ahead and take that, whichever one the employer
will accept as equivalent. If you're in an environment where using that knowledge is rarely used/needed, I might suggest taking the in-person version instead as there's a definite rhythm (pardon the pun) to doing ACLS, and spending some time refreshing your psychomotor skills can only be helpful.
Will I renew my ACLS as I near completion of nursing school
? Of course, along with PALS and PHTLS... but that's for my other