Expected issues with roll out, but found customer support to be responsive & excellent overall.  Dealt with same contact the whole time! How many companies can you say that about? Light feature works fine, press & hold upper button.  Connect issues have cleared up, have weeks of tracking data on the app now.  Graphs are a nice touch.  Getting messages, notifications and goal notifications too.  Sync issue still lags sometimes, but checking back on the app, it syncs, w/out data loss.  No, it is not an Apple or Samsung smart watch, but i didn’t want one of those.  I wanted what the  PowerWatch offered, especially having a device I did not have to CHARGE with simple operation & durable.  Thanks Matrix!