I'm not a fan of the mbox mainly because it doesn't give you any room to grow. I have a 002 and I love it. Pro Tools isn't some magical program thats gonna take your music to the next level just because you use it, but In terms of it work flow its the most intuitive program I've used (I've tried/used cubase, ill Logic, and Sonar). If your using it for tracking mixing and editing audio its a monster and smooth to use. I don't use it for sequencing much though, I've only done basic midi tasks and haven't come across anything that I needed to do midi wise that I couldn't. Now that they have come out with the M-powered version you might want to check out some of the maudio interfaces.