Used to be good. Last couple of months has been unusable... crashes repeatedly...Good for a few months again, and now won't sync... Starting working again a month ago-- nothing I changed. Stopped yesterday. Nothing I changed. spent 1/2 hour trying to trouble shoot. Could not Reload the app on my Note 8 even. ALL PERMISSIONS GRANTED FROM PHONE! No joy but wasted over 1hr time. I GIVE UP MICROSOFT. GOING TO GET A DIFFERENT TEXTING from PC ap!