I use a MacBook and have been using BIAB since the early '90s with one Mac machine or another.
95% of ALL my computing is done on this laptop.
No problems with running BIAB even with other programs running, although it is just common sense to
only run BIAB on gigs as well as closing mail down when connected to an external amp at home.
Wow that mail "ding" can be loud through a PA or earphones

I love the newest version of the program. Having Garageband and Logic available is also
a big plus when creating more advanced arrangements.
Ernie