Paid gsuite has live 24/7 phone support. I've used 5-6 times over 8 years and gotten 5-star service every single time.

Haven't needed to call them in the past 18 mos. or so, however, and these things can change.

I have gripes about aspects of gsuite itself, in particular how they've removed a few features that I used from the $5/user/mo tier. Had to move to $10 tier to keep email content filtering (ability to use regex to prevent accidental SSN or CC inclusion). The filtering setup is much easier to use now, but the old system worked well enough.