Looks like it gets the job done. But save up some money and order a cheepish glass bong online I hear Grasscity.com is a good site
Not bad for a homemade, perhaps try and punch a buncha tiny little holes at the bottom of the downstem for extra filtration
IT looks nice, but one issue, see how the end of the penshaft in the water gets skinny ? If you arent using a screen that will get clogged sooo fast