I don't have a Dacor cooktop but have Kenmore. I had a Dacor microwave. It was one of the most stylish one I had seen. It was complete with an LCD panel, recipes and a little chef to say enjoy your meal once it finished heating it. I love their sleek design similar to Wolf. The microwave did however go bad and the entire unit had to be replaced. It must just have been a lemon but I have heard that their defect rates are pretty high.
I still would buy what I like and get the extended warranty. I read reviews and take them with a grain of salt. A lot has to do with luck.
The only recommendation I would have is to go with sealed burners and a stainless steel (completely) enclosed cooktop. I have that with my Kenmore and also have a 36 inch built in on an island and love it. It's easy to clean, I can spray oven cleaner to get the tough spots out and unlike black it does not have to be shining and streak free to look clean. I am a clean freak and a bit anal so anything black just does not work for me.
