I recently purchased Adobe CS4 and have slowly been working through exercises to learn Photoshop and InDesign. Then this past week I needed a few simple diagrams. I thought it would be a good way to learn Illustrator.

After several hours of learning about and getting frustrated with Illustrator, I downloaded OmniGraffle and produced four perfect charts and diagrams in an hour with color shading and complexity I'd have had to spend a long time to learn in Illustrator.

So much about OmniGraffle is intuitive. What little was not intuitive to me, I could find quickly in the user's guide. In fact, I found some things that I wasn't thinking about, enhancing the final products. And those things that at first were not intuitive, became so quite easily.

I couldn't ask for more.