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Okay, so you will see everything you need to see in order to build a waterfall in your yard; for that I give it a good score. On the negative side the show does not move too fast. The parts you want a little more detail on (like paint) they breeze through at times, and then, sweet fancy Moses, you watch them power wash the structure for ten minutes! "Power wash the structure" with a ten seconds video would have surfaced.
You will find yourself slunking down into the couch as you watch this homeowner (guided by the host) move ever so slowly, as cement literally dries. You will then bounce to attention as you begin to yell at him, "For someone moving so slow you sure are missing a lot of spots". It is maddening to see him go over and over an area while applying cement with no apparent purpose in his stride while still failing to get cement where it needs to go. Then he misses texturing on a few spots and you wonder if this is his waterfall he is failing to give proper attention to detail on.
All in all you are left with two things: The ability to build one of these, and wondering how he ever completed this project at the pace he chose to work. It's actually funny, but at the beginning you see the wife helping, and, somewhere in the process, even she must get bored because you don't see her again until the thing is finished.