Looks great; works pretty well for a pre-release. Sorting and cached headers are pretty important for me to switch to it fully, but it's shaping up really nicely. For those complaining about the quality of a pre-1.0 release, well, I think that releasing alpha's like this is a great way to get constructive feedback. The suggestions and bug reports sent to the author will hopefully make the final 1.0 release really solid.