Well, Iconfactory contacted me last week to do a couple sketches (in Linea, of course!) to help promote their Back-to-School Sale!
and an alternate kraft paper version!
The app is currently 50% off, so if you're on the fence, it's a great time to pick it up! [link!]
It works on all the current models of iPads, but if you want the most out of it, be sure you have an Apple Pencil!
I personally use it as a digital sketchbook -- it's great for drafts, notes, and quick sketches. I really love the natural look of their pencil tools and having multiple paper types (black, kraft, white, grey, blue-print) and a nice variety of guides and templates makes it really useful for daily use!
(You'd think this was drawn on paper, but it's all Linea!)
Check out my blog post review from back in February for more art samples. :D