@jcenters I don't rebut other reviews, I enjoy the diversity of opinions! Every use case is different. I want speed first, and I got the controls, so had no problems. I do want guides, etc. but I don't want it to get complicated or slow.
@jcenters It seems to accomplish what they set out to make. I live in Photoshop most of the day, so I do anything complicated in that or Keynote, but neither is anywhere nearly as fast as Napkin for rapid annotation.