Although I read up on plenty of TV's, I am far from an expert and whilst I was initially aiming for a higher end model, the price point dissuaded me.
I settled for the C645 in the hopes it would be better than my current screen.
So far pretty happy with the product. Sound is usable but not amazing, I might consider a soundbar.
Pic is great with my series X, although it doesnt do true 120Hz, its still good enough for the majority of people and unless you are comparing it directly with something high-end, I dont think you would notice or feel like this doesnt do what it needs to