A little expensive (at RRP) for what it is, so if you can snag it for under twenty quid, it's much better value. The only other slight minus point is that the sled base can seem not very substantial depending on the pressure of water flow and nature of the surface it is located on.
Other than that the selectable arc/radius feature works and the two manually selectable modes of "spray" complement each other. A pit there's not a way to get the sprinkler to periodically self-switch between these two modes, but in this level and price bracket of equiment that would be a miracle!