mhb is right. This may look easy, but is actually a pain in the ass. It is fine for small circuits, like in the example. For big projects, drilling out all the vias or thru-holes is tedious. There are also registration issues and etch time issues.

There is a reason why commercially made prototype circuit boards are so popular.

Agreed. If you're doing one tiny board, save the effort and use veroboard. For anything above that, get it printed.