FYI: I don't believe ISE is using the same quality metal causing these newer models to rust out quicker but, in my recent experience, I found that people who use their disposer properly will get at least 5 years service...that is acceptable for my purposes in the apartments. I did have 2 ISE disposers that only lasted about 2 years. One was from a tenant who almost never used it and allowed it to rust extensively and corrode from non-use. Using it helps keep it clean too. The second one, I determined was not being used properly, i.e., the tenant was not running water before turning on disposer causing food debris to accumulate in the small chamber below the blades/masticator.
Some folks knocked the instructions. Take heart. It appears that the Waste King guys have heard the criticisms from the negative reviewers. I am guessing that they have been re-written to better explain the installation because they are really easy to follow. My best advice is this: don't be afraid of a difficult or confounding set of installation instructions. It is really easy. Here's what you do. Go to and search for a video on How To Remove Your Existing Garbage Disposal because this is the hardest part. You will find one that matches yours. Watch it. I started removing the Badger incorrectly, stopped, watched a video, and then it was a piece of cake. In my case, I shouldn't have removed the three long screws before removing the body of the old one. You do it after it is disconnected. READ the instruction manual carefully. Then go ahead and youtube the Waste King installation video. It is very easy once you see it done. No filing or grinding gaskets, and Good Lord, no car jacks under your sink please. If it is hard then you are doing something wrong. STOP!!! Review the procedure. Start again. The directions are actually very explicit. The parts are well labeled. The diagrams show you what to do. The videos show you what to do. If you prepare yourself (15 minutes of reading and watching videos, tops) you will fly though the installation and be a happy person.

Garbage Disposal Repair