I have and I do. Also the summoner spells are ridonkulous. Heal and tele...I can maybe understand tele a bit but heal isnt really going to benifit Sona like Clairvoyance or Flash would. The only escape method you have is that GA. And you are relying on your team mates to always be there to finish them off because lord knows that Sona cant unless they are low on hp, or attacking you by a turret.

And your Aura dance isnt supposed to follow a pattern in team fights. If you really knew Sona you would know this. E to gtfi and gtfo. Perseverence for health, armor buff and a little magic resist can save the team over q,w,e. And Q is for when your team is casting spells or attacking. She can only maintain two auras. So then wouldnt you want to keep the two up that benifit you and your team the most?

Guardian need if you get focus in teamfights, it give your team time to kill enemy. its simple. Start thinking.

All I will say is that this is horrible build. Guardian Angel...yeah you die and they kill you again.