I like the concept of this design and find that it accomplishes a lot of the watering that used to take a lot of my time moving sprinklers around for! It has saved me tons of time this summer. I just place this on a hose route with my 100 ft hose and let it slowly crawl over a large area of lawn and it gets watered over hours and hours of crawling.  It is adjustable diameter water pattern which makes it quite versatile for accommodating many different sized areas. I have a large lawn area and flower beds and I can set this to go near the flower beds and get both that and the lawn area adjacent in one pass.