I was a fairly light Photoshop user - occasional retouching, compositing, and web UI stuff. Last year I switched to Pixelmator due to cost and found it relative

I was a fairly light Photoshop user - occasional retouching, compositing, and web UI stuff. Last year I switched to Pixelmator due to cost and found it relatively painless, the UI is similar enough to Photoshop that it's easy to switch and IMO more attractive than Photoshop CS3 which I used to use. I tried Gimp once a few years ago and had a far worse experience, it slowed me down a lot compared to Photoshop. This may just be because I didn't devote enough time to get used to it.