Did a kitchen refresh after 20 some years. This included a new countertop. Well, if you get a new countertop, you get a new sink. A new sink, a new garbage disposal. The original disposal was still working but very noisy and shook everything on the counter. It went with the old countertop, so I did not have to remove it. That made the job more tolerable. Who likes crawling under a kitchen sink at 70? In-Sink-Erators always seemed to be a good brand and the price seemed decent enough. 1/2H replacing a 1/2H. Package came with all of the parts necessary to install the garbage disposal. However, keep in mind that if you are attaching a dishwasher to it, you may need to get an additional adapter to attach the drain line to the garbage disposal. You may also need to get the proper wire connector to attach the electric line to it. Check these two things out before you get started and it will save you some frustration.Installation is straight forward. Just read the instructions and follow them. I did just what the instruction said to do and how. There were no leaks, runs or errors. I would suggest taking some thought to how it is to hook up to the drain line. Make sure you have it turned to a position that will line up with how you want to attach the drain line. You will need to attach connector part to the sink so as to allow you to attach the GD to it in a way (position) that will line it up properly once the GD is turned into place. The somewhat difficult part for me was getting the electric line attached. Just awkward working under the sink in a tight spot.Once attached and the plumbing done, it was now time to try it out. Wow, what a difference. Smooth and just a hum. No rumbling and shaking. Works as expected. I had to get my wife to come in and listen to it. No longer will she have to catch things vibrating off the countertop. Score one for me!