No experience with the JennAir, but I would steer clear of the Miele. Gas cooking just isn't their forte. A friend of mine had an all Miele kitchen save for the refrigerator. He and his wife loved the oven, dishwasher, and vent hood, but the gas cooktop was junk. Tons of ignitor issues, and Miele was not willing to help out of warranty. He ended up opening up the cooktop and disconnecting the spark ignitors. From then on he lit it with a match. Pretty pathetic for such an expensive product. The lettering on the control panel did not last and within a few weeks of ownership had entirely rubbed off (including the Miele logo!). The burner performance was just okay, nothing to justify the price or issues.

Consider the Bluestar cooktop. I have a Miele wok burner and it was just tested but not installed yet. I am quite happy with it. The rest is Miele induction. I was going to get the Bluestar of I did not go with induction. The Bluestar is only five burners if that matters.
Good luck!

Thanks- prefer a larger six burner and not really looking for open burners- anyone else have any experience with either of these units?

Well if you don't care about high heat cooking, get the cheapest one and be done with it. A GE profile ought to look snazzy enough and not cost what either under consideration will, so you can put your money into something else.

If you DO care about high heat cooking, Bluestar. With the appropriate vent above, and the makeup air taken care of.

We redid our kitchen with Miele 36 inch, 5 burner, 4 yrs. ago and have never had a problem. It cooks wonderfully for us and has a good higher end btu along with the ability to simmer. Cleanup is a breeze, just a simple wipe does the job. I would recommend Miele anytime.

Have you looked at the Bosch Benchmark gas cooktop?
It's got a beautiful linear design and low profile and has a powerful 20K BTU burner. Its 37 inches wide with 5 burners.

>Well if you don't care about high heat cooking, get the cheapest one and be done with it. A GE profile ought to look snazzy enough and not cost what either under consideration will, so you can put your money into something else.
If you DO care about high heat cooking, Bluestar. With the appropriate vent above, and the makeup air taken care of.

This. Except I would also consider Thermador with their star burners.

We just ordered the 42" Miele lp gas cooktop, so I am certainly hopeful that it is a good one! The thing that drew me to it (besides getting an incredibly good scratch n dent price) was the configuration of the burners.

When we went through a nice sized appliance store and looked at all of the gas cooktops on display, not one had the configuration we were looking for: the ability to cook in multiple large pots all at once. The Miele has this. (Actually, a 36" Bosch at Lowes would have also worked, but with "only" 5 burners and a higher price than what I got the Miele for, we ruled it out pretty quickly.)

I've linked a review of the 36" Miele gas cooktop from epinions that I found to be helpful. Miele's owner's manual for the 30", 36" and 42" gas cooktops covers all 3 models so I'm pretty sure they all run in pretty much the same way.

Here is a link that might be useful: 36

Maybe there is a difference based on model. The KM3475 has mostly good reviews, but linked is the KM3474 which my friend had. While I usually take online reviews with a grain of salt, I sit up and take notice when they all complain about the same thing, as do these. And they cover the exact same issues my friend had: ignition failures and print wiping off.

Here is a link that might be useful: KM3474