Don't you just hate it when one of your favorite Mac apps is missing an obvious keyboard shortcut for an often used menu command? I recently ran into that issue with Pixelmator.
I made the switch to Pixelmator, because it is one of the few decent image editing apps that features support for the MacBook Pro with Retina Display. Normally I'm a CS5 user, but since Adobe's suite lacks Retina support, I felt compelled to make the switch.
Although I don't find Pixelmator to be as intuitive as Photoshop, making the switch hasn't been all that bad. It's snappy, features a bevy of options, and best of all, it looks gorgeous on the Retina Display. If I had to pick a flaw, I'd say that one of the most glaring miscues is the lack of a dedicated keyboard shortcut for exporting your work. Fortunately that can be remedied with a quick trip to System Preferences...