I wish I had not spent the money on 17. After upgrading I have experienced multiple crashes every day, on the order of about 4 crashes/lockups for every hour of editing. Sometimes it crashes, sometimes it locks up, sometimes it partially works but doesn't register every keystroke. I never had any of these problems with version 13 and frankly I'd like my money back. I'm using the exact same system I was with version 13.
The auto-save feature would be great if it would save everything you did up until the crash but it doesn't. This upgrade has cost me hours of time. I have switched back to using 13. I'm happy for anyone's suggestions or to hear if anyone is having the same problems as me.