Regal seems so difficult to get a nice even result with unless you are a fairly experienced painter, and the price point is just absurd when there are plenty of cheaper brands that offer all the same promises regarding durability.
Edit to add: I will say it’s a very nice thick and creamy consistency which helps get a thick coat on initially which means less coats/time spent, but since it can be a bit finicky you might have to do extra coats anyway just to get everything to look even 😕
My favorite is Sherwin Williams Super paint, though lately I’ve been using Ben from Ben Moore and Clark & Kensington as well because that’s what they sell where I work and paint is paint and discounts are discounts. And they both work perfectly fine and go on nicely.