What's The Best Alternative To Skype Premium (Win7 + Android)?

$120 / year is ridiculous.

My needs:

  • group video calls
  • screen sharing
  • good + stable video/audio quality
  • Platforms: Windows 7 + Android
  • Free or reasonable cost
IMO, Google hangouts does not meet the minimum quality standard, too many meetings we've had to end the call and re-call everyone,
Thanks!!!