You will. One machine (win7 upgrade), no messages at all, all the others, yeah, the 365, the store, the 'new features to windows 10' (really? a couple of weeks after installing, NOW you're telling me all the cool things I've already been using?).
The notifications window could/SHOULD be a thing of wonder, same as it works on Android, but I suspect it's going to be the next vector for mass amounts of spam (that Android USED to get until better controls for managing were added, MS will get around to it eventually).
Not seen the Bing message yet though, maybe a bit more time.