Just installed unit. I replaced the one that originally was in my home. It had lasted well over 30 yrs with only replacing oven element and stove element. However, its time had come to replace it.  Replacement part were difficult to find. Putting this one in same required expanding the hole where the other one was located. (sawing) A non-experience person woul have difficulty installing and hooking up electrical.. Your instructions were difficult to follow. More precise instructions are needed. In other words step by step for dummies.