Ah, yes, I saved a list specifically for these occasions so I don't have to retype it every time.
1. The game has absolutely no consistency in frame timing. Think about a fighting game and how each move has a pre-determined number of frames to execute and tied down to a specific button. For example a jab is 8 frames and executed with the dedicated punch button. In TW3, attack is binded to Square/X but the move that Geralt performs is completely random. He can perform a quick downward slash, twirl or leaping slash with one button prompt. The problem with this is that all moves have different frame timings. The leaping slash will obviously take much longer to execute than the quick slash. This will cause the player to either miss the enemy or worse, get hit out of their control
2. There's no weight to the weapons. This is somewhat linked to the first point in regards to frame timing. In attack animations, we have three phases, the windup, the strike and recovery. Most action games would exaggerate the duration of windup and recovery phases to make it seem like the character is putting their all into a move with a very quick strike phase. TW3 seems to have all three phases at roughly the same durations, so they lack the anticipation of a big, powerful hit
3. Enemies don't telegraph their moves properly. In action games, enemies typically have exaggerated windup animations to show which attack they are about to perform. This helps players to read their animations, come up with a strategy and counter appropriately. In TW3, enemy moves are very poorly telegraphed or can at times even be misleading, causing the player to get hit for no reason
4. Enemies are hit sponges. Often, even basic enemies can soak up damage and deliver a hit back even though they're getting hit. This is frustrating especially on higher difficulties because you expect the enemy to be staggered. You timed your move based on the best conditions, you deliver the hit, but surprise, the enemy hits you back
5. There's no weapon variety whatsoever. Now I'm aware axes are in the game, but considering how heavily the game prioritizes swords, it's like the devs are actively discouraging you from trying other weapon classes. This is doubly bad because every single sword handles the exact same way. There's no variance in how one sword may be slower but hits harder or has further reach than another.
Feel free to refute or ignore