I have the 011018 VS Pump, the amount of money you will save in the first month will more than outweigh the amount you will spend on purchasing a new pump. I saw a least a $125 drop in my electric bill after I installed my pump, so yes I paid $900 for the pump, which at the time was not on PG&E's list so they denied my rebate request, but it was the newsest and great pump out there, and although I cared, I really didn't, I just needed to drop my electric bill. Fast forward to one year later I get this $150 check in the mail, it made their list and they refunded me. So like so many people here have said, a new VS pump for $400 I'd jump on that like a dog on a bone! Installation, well that's up to you. I did my own, it's not rocket science and the electrical is pretty straight forward. I've had it now for 7 years and love it. Just set it an forget it, you really don't need wi-fi to control it. There are so many features to control the speed, and times for on and off you really don't need wifi. I tweaked mine a couple of times but once I got it dialed in I never touch it, that's been about 6 years now. I say jump on it ASAP. And you'll love the electric saving on it also. Well worth it in my opinion.