We agree if a bank does not provide transactions in a format suitable for electronic data interchange then you have no alternative but to do it all manually and doing it manually monthly is reasonable if that works for you.
For users with banks which do provide bank transactions in a format suitable for electronic data interchange (this does not include pdf), then the bank import can be done efficiently as frequently as the user wants to update their records in Manger. As it is so efficient it can be done daily or even more often than that. Very frequent update as often use with bank feeds, and Mangers bank import facility approaches that functionality.
See
@Daniel_Arthur Sorry if I implied there was anything wrong with how your are currently using the only bank information your bank provides.