I like how easy it is for me as an administrator in GSuite with multiple sites/domains under my control - that's one less thing i have worry about! It would be nice if there was some sorta "housekeeping" feature where you could make sure things were running smoothly across your domains without having someone else do all this work manually every day or week etc..
There isn't anything really bad at present but we're still waiting patiently while they develop more functionality which will help us solve our problems even better than what already exists now :) We use patronums software daily so its great when something goes wrong because then everyone knows who did whats right away instead oof spending hours trying figure out ourselves wtf went down haha.