It was one generation, the 'touchbar' machines, not four. The third generation Macbook Pro is widely considered one of the best computers Apple ever built. I'm

It was one generation, the 'touchbar' machines, not four. The third generation Macbook Pro is widely considered one of the best computers Apple ever built. I'm typing on one now. It's almost ten years old. Original battery, even (though it really should have gotten a new battery about 2-3 years ago.)