Over the past few years we have used mostly K-Rain ProPlus rotors for residential new-installs as well as repairs on existing systems. They got me to take a chance with them when the local distributor had buy one case-get one free. They honestly have been good to me. Before that we used PGP's almost exclusively. Long term, I don't see a whole lot of difference in failure rates. If anything, here anyway, we've had a little more trouble out of the PGP's. On the other hand, there are a lot of PGP's that are still in the ground and going strong. So, I can say I am comfortable with using either of them, with my preference going to the ProPlus. I was at the supply house today and noticed the small stack of RB5004 cases sitting there and wondered why I had never given them a shot like I did the K-Rain. The supplier had given me a number of them a few years ago and I used them for watering in fresh sod with hose spikes. I don't even know what I did with them I know one got installed, but I can't seem to remember where. I remember I really liked the nozzles and pattern, but I don't have any long term data of my own. When I paid the bill I asked one of the guys at the supply place about the Rainbird, he didn't have much to say about them one way or the other. He did tell me they were $6.7x each and that struck me as odd. Is this rotor on it's way out? He said it was just a short term sale. So what are your thoughts on it? Other than the nozzle, is there anything extraordinary about this model? Anything terrible about it?