I like it because the pixels are HUGE but still the actual pixel is *tiny* and ordered. What I posted above looks like regular pixel art, but it actually behaves differently. Banding's not as an important issue as in real pixel art, and though good pixel clusters are still a must, I find myself shading more just so there's texture to large areas. Super-close colors have a point at this size too.
I'm only scratching the surface, however.