I don't quite have a pixie, but I have a crop. My stylist cut it long enough that it wouldn't be as big of a pain to grow back out. And I'm so glad I did it. My hair wasn't really responding to anything I was doing and I got so fed up with it that I finally decided to cut it off. My hair is 2c (pics are in my fotki). I got a really good cut and it's super easy to style. I wash my hair and scrunch either a mousse or a light gel in it and it only takes about 20 minutes to airdry. I don't know if I ever want to have long hair again, seeing how easy short hair is to care for. The only thing I have to make sure I do is get regular trims and use plenty of protein.
Keep in mind that it's a big change, but if you're ready, go for it. It'll always grow back out.