Features:

Only 1 permission: bookmarks
Drag & drop tiles to reorder
Custom images for tiles (right-click on a tile -> edit, or just drag an image from desktop and drop it on a thumbnail)
Command palette - filter flat list of all bookmarks (currently Cmd+P on mac - when focus is on page)
Docked folders! - show your "Read later" or "TODO" on the main page
Style page with custom CSS - paste your CSS in settings
Theme support
Import/export settings and thumbnails to a file, for backup.

Check out the Customization Tutorial to see what you can do to make it even more personalized!