The cabinet will need to be modified, but it's doable. Make sure you have a seasoned cabinet installer, and most important a countertop fabricator that can do precision work.

Just a note about my experiences re power sharing on induction cooking. On a 36" wide, there are 3 power sharing zones. On a 30" wide, there are 2 power sharing zones. Power sharing only comes into play when using the Boost feature. Boost is the extra heat above levels 1 through 9. You use boost to attain a boil but not to maintain a boil. Once the pot has the bubbles you want, turn the heat down to 7.5 or 8 or 8.5, whatever you like to keep the bubbles at the ferocity you want. It will boil over if you do not lower the heat. On my Bosch, 'boost' automatically will shut down after ten minutes but as a practical matter, I shut the boost off after it gets up to boil, to prevent a boil-over. You can have all five or four hobs at full power-at any heat level, except boost and not power share. I have been using my Bosch for 3.5 years now. Power sharing is something I read about but simply doesn't come into play. By the time I get the next pot ready to boil, putting water and food in, it's time to shut off the boost to prevent boil overs. To summarize, you can blaze every one of your hobs at the same time as long as boost is not engaged. Power sharing only applies to the boost feature. Use boost to attain a boil but not to maintain a boil. fini

I had wanted 6 hobs so it was easy for me to choose the 5 hob over the 4 hob. Last summer when I was canning with my 21 qt. stainless steel water bath canner I called Miele directly to ask if it was ok that the bottom of pan was about 1" larger than the hob outline and they said it was not a problem. I've never asked about the smaller pans. I have a 30" oven under the 36" cooktop so the cabinet maker adjusted the top drawer fronts on either side of the oven so you cannot tell they are reconfigured on the inside. I had posted pics last year but if you'd like to see them, it's no problem for me to post them again. What other appliances or cabinets/drawers are on your 9' counter/cabinet run? Are you considering not centering it over the 30" and aligning one edge and having the other edge 6" past the cabinet below? I definitely understand your statement about not getting "swept away" by the bigger size - so easy to do. But with Miele, at least in my experience thus far, you can't go wrong and in my case, bigger was better because I'm like cotehele and many times use all the burners.

i had the 30 inch Miele in my old house and "got used to it" pretty quickly. No knobs also makes it really easy to clean