I got this product when I bought Monster Hunter Tri.
I already had a Classic Controller that I purchased when it was first released.
I have used the Classic Controller to play Super Smash Brothers Brawl since a few months after that game was released. I'm still good at using the Gamecube Controller, but I wanted to start using the new controllers so that I wouldn't have to hunt for Wavebirds when they stopped being produced.
This controller addressed all of my concerns with the original design.
While playing using the original Classic Controller, my left hand would rotate around the analog stick slightly. This would not usually be detrimental until it had shifted enough that pressing a direction would register as a diagonal. For example, trying to press Up-B to recover while my hand was rotated downward caused me to press Over-B which would cause a suicide and a wasted stock.
With the new Classic Controller Pro, my hand stays anchored in place and I notice less mistakes during critical matches.
Another issue with the old Classic Controller was the R and L buttons being analog. This was the same issue that Gamecube Controllers have where a slight press doesn't register as a shield unless the button is completely pressed in. This is an issue specific to Brawl as Melee supported slight indentation.
However, with the new Classic Controller Pro, L and R are now digital like the rest of the buttons. This lets them be used like Super Nintendo Controller shoulder buttons or like Gamecube Controllers that have had their shoulder button springs removed.
It's worth getting just for that.
Also, the analog sticks are farther apart, which makes it so that Thumb Clash (Thumbs colliding during gameplay) is no longer an issue. It was rarely an issue to begin with, but the thought is nice.
I purchased the Nyko Classic Controller Handles to try to get the same effect before the Pro was created to try to address the rotating hand problem, but the handles were too short to solve the issue so I stopped using it.
As for Classic Controller Pro with Monster Hunter Tri?
The zR and zL buttons are barely used in this game, so if you already have a Classic Controller the Classic Controller Pro is only worth the upgrade it you have $20 you want to blow. Otherwise the old controller will work perfectly for you.
All things considered, I don't regret buying this controller at all and would do it again if I lost or damaged this one.
