I really like how simple it is to use, no additional software required once installed - just add your favourite websites or bookmarks into this app! Nothing at all as far what i can see (except maybe for some minor bugs here-there). It's still an early version of their product so be prepared that there might come new features which you don't know about yet but will love later :) Use them while they're free.
As with any other web browser extension/app store application / tool etc., try first ifβ¦