Product review (5 stars): Better than expected.
Excellent transaction with great results.  My dishwasher was a black GE with a METAL front.  The magnet effect was strong, so it just rolled into place - though I had to keep it completely square, and I had to adjust myself a few times until it rolled completely square to the front of the dishwasher.  There was a 1/2" excess length on the bottom, but that is not noticeable.