Haha, the the hofer gurgle buster is easy to build, it only looks complicated. If you don't have a dremel it would be more time consuming. There is a lot of them out there, and it seems most of them are pretty effective.
The hofer does look really complicated lol more people do say good things about it when compared to durso but no one really compared it to a herbie or the beananimal. Is there a comparison between all the different kinds of overflow?