About six years ago I installed an InSinkErator Badger 5 in my kitchen. It worked OK for the first few years but started failing in year three. The problem was that it wouldn't grind certain items enough and they'd clog the trap. Pasta, rice, and any stringy vegetable like celery never gut pulverized enough and potato skins were hit and miss. We finally just stopped using it.I wound up purchasing the Evolution Excel for a few reasons:1. at 1 HP it's twice as powerful as the Badger 5.2. it has three grind stages - the Badger 5 has one.3. it's designed to work through jams by raising the torque and/or reversing - be ready to grab that Allen wrench with the Badger 5.4. much more use of stainless steel in the chamber and cutting components - the inside of my Badger 5 had significant rust.5. although not a deal breaker, the Evolution Excel is designed to be much quieter.But, all of that came with a price. The Excel is about 250 dollars more than the Badger. But, what good is saving money if the disposal doesn't work properly? Is the Excel worth four times the Badger? That's a subjective question but for me the answer is yes.Installation went without a hitch. Since I already had an InSinkErator I used the existing collar. I moved the cable connector and the electric cord from the old disposal to the Elite. I punched out the dishwasher plug and moved on to mounting it under the sink.This is where you may run into a problem. The Elite is heavy - 25 pounds heavy. While it doesn't sound like a big deal to lift 25 pounds remember you're going to be lifting 25 pounds under your sink and when you get it positioned you're going to need a free hand to turn the mounting ring. I considered a number of solutions including using a car jack and stacking a bunch of books under it and then lifting it the last few inches with a crowbar. But, my wife was available and I was installing this under a double sink under a 48 inch cabinet. I was able to lift it while she turned the mounting ring.The side of the sink I have this mounted under doesn't drop straight down to the trap; the other side of the sink goes to the trap. The disposal discharges to a T on the other side. Surprisingly the Elite's discharge is about the same distance down from the sink as the Badger 5. I trimmed down the included straight discharge tube and hooked everything up exactly the same as before. After connecting the dishwasher drain, checking for drain leaks, and plugging it in, it was time to give it a try.Rather than go easy I loaded it up with ice cubes, turned on the water and flipped the switch. Gone in a matter of seconds and much, much quieter than the old Badger 5. You can actually talk to someone while the Elite is grinding ice cubes.Overall, I think the Elite is a terrific garbage disposal. It's well made, quiet, and does an excellent job doing what it's supposed to do. I expect to get many years of service from it.