I bought this to replace my expensive Nelson SR 150 impact sprinkler head, and I found it definitely way better than the old one. The old impact one had the same 2.5" inlet but also lots of moving parts making lots of problems in time.
It is easy to install with its quick coupling, does not require inordinate amounts of flow or pressure, and is more pleasing from an engineering point of view. So pleased that I have discovered ducar green 150. Perfect uniformity!