Product review (3 stars): Thermostat problems
I love the look and rolling shelf design of my DCS WOTD-230, but have a lot of problems with the thermostat.  I had a Kenmore in my old house, but got my DCS for my new house 3 years ago.  I could immediately tell that the DCS took longer to preheat than my kitchenaid.  After a while, I noticed that the upper oven seemed to cook hotter than the lower oven, so I hung thermometers in each oven.  Now, after only 3 years, it preheats to 50 degrees hotter than I set it, then after I open the door and put my food in, it seems to eventually stabilize closer to the temperature that was originally set, but sometimes ends up too low.  It makes it very hard to bake things that need specific temperatures.  Lately, the upper oven gets stuck at 280 degrees until I turn it off and then on again.

One good thing is that the broil setting works really well.  The thin wires that wave around over a plate of glass looked a little wimpy to me in the store, but they really heat up fast, and get very hot, so I have no problem broiling.  I think that aspect is better than my Kitchenaid.

After I bought the DCS, I looked up a lot of reviews that complained about the self-clean function going out, but mine still works well.  I have used it several times.  I just wish I could set it to the temperature I want to bake at!  I wish I had bought a Kitchenaid.  The nice little rollers for the shelf aren't worth it for a bad thermostat.