Kv. It's the integration that burns the labor in development. But that time yields the results you are seeing in today's systems. And the work for ease of integration brings it home for the regular modelers like me.
I have retrofitted cortex gyros on just about everything I fly. It makes my experience far more enjoyable and my confidence higher especially in poor weather and wind.
My my crosswind flying has become so much better. Thus I fly more which makes me better. And so on and on.

it reduced a major barrier for a lot of people in heir models. That's what it does for me. My personal choice was the cortex for that purpose. I liked it so much that I promote it now. Have fun out there guys. We are all in this to have fun. Anything that adds to that experience I am for.
i put one in my big world Kadet and it made it the favorite club trainer. We play pass the buddy transmitter often with new pilots. For example. Even in windy conditions