I'd say it competes more with illustrator but i do love my sketch. It really does feel like the fastest way to put ideas together. It's the little things, like how you're not confined to a page when you open up a new doc or the layer management that includes the object grouping. There's still a few rough spots but the philosophy is bang on. And this is before you get to the price, which frankly makes illustrator's pricetag incomprehensible.