Believe me I envy and am jealous of people who have no issues, but after several hours in I pretty much said fuck it, uninstalled, and will probably never come back to it. Which is a shame because I really enjoyed the original and just about everything in the Witcher 2 except the combat and controls. Also the combat encounters are atrocious. Your immediately thrown into combat on numerous occasions and before you can even block your already getting hit and surrounded by 6+ guys. Do I need to play with a m/kb because the gamepad controls are horrible.
In the older system the problem is that you should NEVER block in group encounter, I really liked that, people tought they could charge and defend themselves "magically", more even with a low level character with no abilities unlocked. You had to use potions, bombs, traps, try to trap someone with the stun sign.. and then bleed out the group. Its not that hard.
About the mod, I've tried it a bit in the main game. For the people with problems, a little disclaimer: this is a mod, not an official patch, and its the first release, of course bugs are to be expected and it won't be 100% polished. The tutorial is bugged because the riposte, just don't do it (most of the things they teach you change with the mod), and if its your first playthrough deactivate the mod and do it out of curiosity if you want. And about the riposte, I'm unable to do it (bugged?), and if you try to use bombs some times Geralt character bugs and stays stuck in the typical "development posse". Also I'm not very sure if the rebalanced talents work as they should.
And if you have any problems but you haven't started a new game, just try it, in this type of mods (major overhauls) the 99% of the cases you have to start the new game, they won't be compatible with previous save games.
Anyway, if Flash decides to support the mod (remember, he is a combat designer of The Witcher 3 and this mod has been done in his free time) we'll have releases more polished, and a bit of personal taste, I love the pirouette animation, I wish they substitute completely the roll with it.