Having tried virtually all other possibilities, only Sygic and Co-Pilot remain. ALL others suffer from:
1) Ridiculously outdated maps..some 3 or more years out of date which show me flying through the air instead of driving over a bridge.
2) Clunky, inscrutable interface sometimes with a tiny ribbon of 'buttons' too small for a child's finger.
3) Not playing well with a music player running simultaneously (a deal breaker for me)..muting sound badly or too impossibly low volume to hear anything at all.
Obviously in the minority, I actually prefer the new Sygic UI over the old one which was definitely showing it's age. I only hope they get their act together soon lest they fade away.