Product review (1 stars): Very poor quality with major design flaws.
I have a slightly older revision of this product. Very basic things are poorly designed - one example - the spark "plug" mounting rings are made of a ferrous metal instead of a brass type material. Result - the simple clips just rust away and the spark plugs can be pulled away from the system within just a few years.
Another example - the XLO burners are prone to going bad. Either the simmer controller or the potentiometer or something else is wrong. I've already spent a few hundred dollars repairing this garbage.
A third example (ergonomic/safety this time). The knobs are on front. At least on my unit, I can lean on the range and the knobs hit my pocket (the one with a wallet on it) and automatically the knobs move and the sparks fly. On at least half a dozen occasions, I have managed to turn the burners on inadvertently. One fine day, someone will set their house on fire with designs like this. Just avoid this product - like the plague. Its the worst product I have bought in the past decade.