Mind you it has been many months since I have played this but I recall the following.
Switching signs was a pain.
Did not care for the oils/weapons concept. Learning what oils worked against what, plus which sign to use. Required too much research on bestiality.

The movement was really janky, though I recall it might have been fixed by an update?
Slash and roll, slash and roll. Like Zelda, minus the fun of the dungeons.
When it comes to fighting with a swords I actually prefer the simplicity of Skyrim, Elder Scrolls Online (until the special attacks using buttons became more important for survival) or even Dying Light's combat system.
I wanted to love Witcher 3, with the vast lands to explore and numerous quests to spend a hundred or so hours on. It is what I look for in a game but if the combat simply does not work for me, time is better spent elsewhere.
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