My answer over on Kitchens: I think that the front says "Wolf Challenger." So I googled "Wolf Challenger range," and there are lots of hits. However, it seems to be the name of a current line of Wolf commercial ranges. Just so you know, there are lots of problems installing a commercial range in a home if it does turn out to be commercial.

Propane tanks are only filled to 70% max. Daily household usage is minimal (vs using propane for the type of backup generator we have that uses a gallon per hour). You pay more for the gas due to low usage but it should not be prohibitive. Alternately, induction cooktops that are highly regarded include Miele, Wolf and Bosch. Thermador has a very beautiful one. I was researching them for a possible retrofit. The downside of induction, depending on the cooktop, is losing space below -- I have a high usage utensil drawer there. Also induction-friendly cookware is required. But those who have them seem to love them. My girlfriend got an Electrolux induction range and loves it. You might take a look at that. The induction site has the most technical info in one place. Here is a link that might be useful: The Induction Site

I think that the front says "Wolf Challenger." So I googled "Wolf Challenger range," and there are lots of hits. However, it seems to be the name of a current line of Wolf commercial ranges. Just so you know, there are lots of problems installing a commercial range in a home if it does turn out to be commercial.

More expensive doesn't mean more profit. They're really not connected. I don't think the saleswoman was likely being purposefully dishonest, but her view of the issue is probably more colored by a sales goal of selling X number of Wolfs than it is by steering you away from a product which is 100% untested and could be just fine, based on past bad outcomes. You're doing your research. You know the issues. Ignore the sales help on the information. You already know more than they probably do. Trust what you do know. Having been bitten once by a beautifully designed appliance, first off the line, which was so off the mark that the maker took it back, I'm shy of early adoption. That's my bias. Miele also has a very good reputation for cooking appliances, and hasn't yet had a big issue like this, so I would choose Miele given a choice of the two. If you're less risk averse and really want the Wolf, and if you're ready to deal with it if the oven has an issue--or any other part of a new design goes kaphlooie--go for it. The actual works of Wolf ovens are excellent according to all the good cooks I know who have used them. But if you're price sensitive, which it sounds like you might be, is it worth the gamble?