It was difficult to mount this replacement. Also, it came without a power cord. Make sure to include the "power cord kit". I didn't and worked through removing the power cord from the failed unit.
Our old disposal worked for many years but when it started to go in and out, we decided to buy the same model and try installing it ourselves, as it has a quick release. The part was relatively inexpensive, and it came with all necessary components for me to replace the unit myself in under an hour. Easy peasy and works great!
Tried another model to replace our previous 12-year-old version of this. It was quieter but not as good, so opted to swap out for the same model as we had previously. Works well and not too loud.