Using and dependant for long time. Never failed. Now  observed that while backing up data  it is directly showing google drive on first place. In between i hv changed handset and android version. Earlier i used to back up in sd card and then upload it to cloud. Whatever happened is good! I recommend one thing  just a pop up msg to backup whenever any changes occur in database. Not the pop up timely msg. If no changes happened  then backup may not be necessary.
March 22 2017