Any Yeti M12 Cooler Backpack reviews?

Over the last 3 days I had the opportunity to buy all Yeti products 40% off. I've heard a lot of hype about them and while they are expensive as fuck, they did seem high-quality. I got a Hopper flip 12 for my parents and an M12 backpack for myself. I'd like to go on more camping trips in the future and the M12 looked perfect for that. Could have bought the M20 but it would have been over $500cad before discount which is insane plus it almost looked too big. I imagined if the thing was hypothetically full of drinks and ice it would be incredibly heavy to carry. I bought the M12 instead for $240cad.

I've been looking for reviews on the M12 online but I've barely found any. Did it just come out? I want to know how the M12 is going to hold up long term. For anyone that has the M20, was I right in thinking it would be too cumbersome at max capacity?