Well I used it for many years for simple things but now I have added two accounts for it and my original one and switching to any of the other two is impossible. On the windows app it just doesn't load anymore, I have installed the latest version and still nothing. the mobile app is loading very slowly and switching account is just frustratingly slow. On other forums, it appears many are facing the same and I need to copy files to Note and it just is not happening. I can't believe this is a terrible app to use now. Maybe switching to web base use but it is not practical on a mobile device. I sent a message on the twitter account as well and see what comes back. 4 stars will come back when it is resolved. Correction, the web based version is just the same. also, it keeps going through the 3 screens every time once you close the welcome screen to pay for premium.