If there's one thing we can all agree on, it's that the controller sucks.
I would say the stick is the worst part. They wear down after a while. Eventually, the sticks will get to the point that your character moves not as fast.
They are very easy to replace, but definitely not my favorite.
I would say the controller is quite comfortable after you get past the intimidation factor of the three prongs, lol. But the L button is practically unreachable. So in Doom 64, I have to move my hand to the L button for strafing, quite akward

Turok's controls are great though. Aim with stick, move (and strafe) with C buttons. Perfect. I hope they are in Goldeneye.