How has tabnine been responding to the development of Copilot? I've looked into it and the most enticing feature to me is the ability to opt out of it using you

How has tabnine been responding to the development of Copilot? I've looked into it and the most enticing feature to me is the ability to opt out of it using your own code to train (not even sure if that's a correct interpretation) However it's even more expensive than copilot...