That said, as for TW2 combat itself, I rather like it.
Yes, it can be frustrating if you cannot handle large groups. It took me a while before realizing using WASD for movement and spacebar to dodge was the best way to do it (instead of double pressing one of the WASD keys), and once you pick up the dodging increase talents things do get better.
It is very different from most other action games of this style, which usually will handle large group battles by having the enemies encircle you and then attack you only one or two at a time, like in martial arts movies. It took some real guts from CDPR to actually make them gang up as they would in reality (more or less). The end result is that being outnumbered is far more dangerous than in most action games, and can be extremely frustrating.
Once you've mastered the art of handling large groups, it does become much simpler. Keep on the move, dodge frequently, move in when you've singled out an opponent, then dodge out when their friends come in.
Use crowd control: Aard or Yrden signs, stunning bombs, wittle down their numbers. Or fire up Quen and move in to quickly land a few blows and dodge out before the protection is stripped away.
Do not hesitate to use potions and oils. Learn to recognize when things will get rough and plan accordingly.
And finally, practice. Practice, Practice, Practice! When I ran into the monastery fight in the prologue, I must have done it 20 times. Not because I couldn't beat it (though it was tough), but rather to just learn to handle such situations. Same thing with the fight against the Baroness' son (I tried to negotiate, then deliberately choose to fight them all to challenge myself and learn how to cope with 3 sword and boards).
And when practicing, try to keep sign usage at a minimum. Just learn to dodge and roll around a lot and single out opponents. Then when you get to the game proper and use those extra protections and traps and bombs, you should be far more effective.
Hope it helps.
i still want to block.... garalt always said how blocking an strike was important.