Raiju TE and Mercury edition

Hello everyone! I know that about now everyone is sick of reading about TE issues with connection, or lag or whatever... But I'm actually intrigued, I only read about issues in the normal TE, haven't seen anywere complaints about the Mercury or Quartz. Is this a thing? Or is just me that haven't seen it? I'm already waiting for my 3rd controller. And if it's real that the Mercury does not have issues, I think I'll ask for that insted. Cheers. Ti_Saoil