I have two of these sprinkler recently in use. The irrigation area is just awesome. The settings set to a really precise irrigation! I am very curious to see how the sprinklers behavior after one year. I had, also stored away in the spring of 2010 another Gardena product in use and this over the winter frost, which then, as they were to be used again, only a "clack-clack-clack" of went out of their ... We will see ....