Other location suggestions? Crap unless explicitly entered in the Calendar. Article suggestions in Google Now? Crap. Despite having my entire Feedly info (300+ feeds) from which they pull most useless cards. Youtube suggestions in Google Now are somehow even worse than video suggestions in the Youtube app. Ads? Complete garbage and borderline fraud against all these companies paying to advertise mobile games which I almost never play and they know it.
Bizarrely, I have a Google Apps account at work with much, much less info and it's actually a little better.