Modded combat adds so many layers to it and witcher contracts finally feel like proper boss fights, you need to prepare for each of them in a different way because without the right potions and oils it's unlikely you can succeed (unless, I don't know, you've beaten all Souls games with ease). The major downside of it is when you encounter large groups of enemies, because you don't have the time to recover. Popping a potion or an oil after your first death definitely helps, though, but it breaks immersion a little bit haha

Anyway, highly suggested