Depends. GMail was fundamentally innovative - do you remember what webmail was like before it launched? GMail gave us a gig of storage and Google search over your inbox and threaded conversation view and keyboard shortcuts and a UI that didn't require page refreshes between each message.

Similarly, Maps was fundamentally innovative. If you went to GMaps c. 2005 and then went to MapQuest, there was absolutely no comparison. I kept wanting to drag the map around to see what was just offscreen. And then Maps kept innovating with satellite imagery, and Street View, and local business labels on the satellite imagery, and double-click-to-find-the-best-vantage-point.

Then there are a bunch of me-too products that succeed only because its Google and everyone already uses them.

Unfortunately this includes everything I've done at Google, but I'm hoping they've set things up for future innovation. Real innovation takes time, usually 3-4 years. Google's strength has been that they're willing to devote that time, but you can't have every single product out the door be a hit.