Ranked in these QuestionsQuestion Ranking
Pro Google Now style layout
The extensions has a clean customizable card-based interface.
Pro Can provide system information
The extension has a widget that displays CPU and memory usage as well as storage information.
Pro Open source (MIT)
Pro Lots of widgets
The extension has cards for apps, bookmarks, quick settings, top sites, downloads, history, session and system.
Con Limited customization options
While it's possible to choose which cards are displayed, there's no way to change the order of cards.