This is my second YnM weighted blanket, the first one got destroyed by my cats over the course of 2 or 3 years, so I'd say the brand is pretty durable. I'd suggest that if you sweat easily, you should get one suited for cooling because this thing makes me wake up sweaty in the middle of winter. Perfect for if you prefer warmth, though.
My body very easily adjusted to the weight and although carrying it around and folding it is still difficult, it feels kind of light when I'm under it.
I would suggest getting a duvet cover for it because it's so heavy. It could easily break your washing machine and it'll wear out faster with more washes. I made the mistake of not using a duvet cover with my first one but it still lasted about 2 years with cats constantly kneading on it too.