I like the Ribbon. I’ve liked it since Office 2007 and I still find it useful. A lot of third-party apps have started using a similar interface concept. It works in Office, but it seems like it doesn’t work as well elsewhere. Foxit Reader recently added a new Ribbon-like interface. It’s easy enough to change, though:
Just go to File->Change Toolbar Mode, If you want to switch it back, go to VIew->UI Options->Change Toolbar Mode.
You can also still hide the ad at the top, but the location to do it has changed. Now you have to uncheck the “Show Advertisement” box in File (or Edit if the Ribbon is turned off)->Preferences->General.