While I believe that this icon set is the best there is for Linux I do believe it can be improved a bit. My main critique would be that I think the icons are a bit blurry when they are under 32px. This might be by design as it might offer better support when scaling the images, but I guess I am a little picky and prefer sharper icons. For this reason I have replaced the status icons with Faenza as they are a bit sharper and come off a bit cleaner. I would be glad to share a screen shot if requested.