Google isn't bad with commercial accounts through normal channels. I'd personally put them in middle of the road. Their sales/se type people that I've dealt with are above average in my experience, although in the past there weren't many of them.

If you're 5 people at a dentist office with GSuite, that may be a different story. That's always a problem when small entities buy direct -- that's why VARs exist to provide more handholding for smaller orgs.

I've managed some pretty significant vendor relationships -- if you think they are the worst from a support POV, you're young or exceptionally lucky!