I actually liked the interface except for the header part(specifically the purple-ish colors) and the font rendering (just a disaster). But you're right, it is snail-like slow when loading. Initially I thought it was because it's loading a bunch of users' info and thumbnails (I can scroll down for quite a while), but some people here are saying it loads fine for them, so it might be browser specific. It's also sort of "glitchy." Nonetheless, it's a neat idea.