My honest experience? It’s shit!
I wanted 5 litres of paint to do a small room. I knew I could do it easily with that amount as I had painted it three times over the years.
Picked up a tin of Dulux Heritage 2.5 litre in B & Q but it was the only one they had, and I really wanted that colour.
“Oh we can match that” says the assistant and it will work out a lot cheaper, so I get talked into buying 5 litres of Valspar.
Not only did it stink, the coverage was terrible and I had to do three coats so ran out of paint.
Had to go back to buy more but they hadn’t kept a record of the mix/sale (an error apparently) so they ended up taking the dregs out of the tin, painting it on a bit of paper and drying it with a fucking hairdryer (I kid you not) then matching that.
Buying another 2.5 litres meant it worked out way more expensive than if I’d bought the smaller quantity (much better quality) Dulux Heritage. So much for saving money!! Not to mention all the to-ing and fro-ing!
Then when I got it home and finished painting the room it was a noticeably different shade! It annoys me every time I look at it!
Finally, it is not at all durable. Ever the lightest knock, scratch or scrape will remove paint.
It’s not been a year since it was done and I’m going to have to redo it.