Love their rotor heads. They are by far the easiest to adjust and you can change both left and right stops just like the way the old impact sprinklers set. Just pop off the top and there you go. I have had two houses with nelson systems and had good luck. They also have a good warranty. 5yrs on everything but the controller which is 2. Good luck, shop around but don't be afraid of Nelson, they have a good product too and great product support should you need it. Another piece of advice is to go with a reputable contractor, ya know one that is going to show up to help should you have any issues down the road. In my opinion, that is what you are paying for too. Take care.
