The Lee Valley irrigation system I bought? It rocks HARDCORE. I was amazed at how straightforward it was to set up, considering how very complicated it looks in the catalogue. For 3h of puttering I have an amazing low-flow system up and running - it waters almost the whole backyard at once with about 1/16 of a twist of the faucet. It's visible but unobtrusive, and as plants start growing up the fence (honeysuckle, clematis, roses) it will practically disappear. The only problem is a leak between two components at the distribution header; I will be popping into the store again on Monday to pick up one last component to complete my schemes, so I'll bring the leaking connection in with me and ask them how to fix it.