Product review (4 stars): downdraft install
I installed this downdraft in an island with a regular slide in range. I used a blower from the previous range that was there but had to move it into the basement which required re-piping of the intake and exhaust vents and also had to rewire it.  If the downdraft motor assembly did not stick out towards the range I could have mounted it where it should actually be but now it is 1 1/2" further back. It still works but not as efficient as it could be if it were the 1 1/2" closer. The downdraft works very well and I am happy with it and normal installation would be a breeze. Although I don't think this downdraft was worth the money we paid but it was the cheapest I could find for this rental unit.