Jeri, Since I am only interested in Dual Fuel (Gas on top, electric for oven), I am not familar with Gas only configuration and how their convection oven is constructed. All I know is a true convection oven within a Dual Fuel range is suppose to have 3 elements, including the circular element surrounding the convection fan. I guess this is why you need 240V for a Dual Fuel range since the power demand is higher than an all gas range. I compared this to Bosch which called their true convection oven, European Convection. The Bosch Dual Fuel range also has a third element surrounding the convection fan. I hope this helps.

I got a DCS duel fuel range with five burners. I usually use the center burner only. It is much easier to clean up and the grease and grime are kept in the stove top and not on the surrounding counters and front floor. I use to clean up everywhere but with doing cooking at center burner; it makes cleaning much simpler and quicker. I do wok cooking mostly!

@Heather Spencer I'm not a pro but I dove into the ventilation question a bunch when I was looking at what to do in my own kitchen. There are a ton of posts on it here, too. ventilation is pretty location dependent as far as what you can get away with, but what you should do is use a hood that's sufficient for the range you buy, and provide the makeup air system that's required for it. If you are anywhere that has cold seasons, or if you live in a tight house, you need to have makeup air. Passive systems work in temperate climates, but not so great in cold climates. The makeup air system is designed to prevent a backdraft situation with combustible appliances. In a cold climate with good insulation, houses don't leak, which means your hood vent will suck more air from your house than can be replaced by leaky doors and windows, causing a dangerous situation. The higher the CFM, the harder it is to replace the air without a system in place (gas dryers, gas water heaters, gas fireplaces, and even bath fans contribute to this calc). For a 48" range you need a serious range hood (Wolf recommends 1100 CFM for their 48" range if I remember correctly). Anything over 400 CFM typically requires makeup air. I ran through the calculations in the code in my state when I was trying to decide on a range and found out that it didn't take much to throw me into full makeup air system, so I decided to go with induction. If you choose a 48" range and pick a lower CFM range hood, you'll end up with smells and smoke, unless you just have the range because it's pretty and don't do more than boil water or make grilled cheese on it. So, in order to do it properly, it costs money. More in cold climates, where makeup air needs to be heated. Less in temperate climates. My builder estimated about $5-6k for the makeup air system (not including hood). I priced out what I would need from fantech, and it got me close to that number. So it is true that the ventilation + hood can be as much if not more than the range itself. ETA: this isn't specific to 48" ranges - Wolf recommends 500 CFM hoods for their 30" dual fuel range, so it's more about the power of your range than it is about the size of it. But generally the bigger your range, the more power it has.

Yes, actually. If you look at the reviews on Home Depot's website many of them will say to the right that the customer review is from cafe appliances (together with the logo for cafe). Having read through many of these reviews on Home Depot's site as well as Lowes, and on online retailers such as AJ Madison, Appliance Connection, etc. you will see the same reviews appear. From that point there are complaints by some that their reviews we removed for being negative. Review removal, either following a post or in the pre post approval process is a relatively well-known phenomenon by many businesses, and thus is not surprising. If you are asking whether I know the extent to which this practice is done by GE, I do not. If you are asking whether I know that the testifiers who claim that their reviews were removed are credible testifiers, I do not. If you are asking a deeper philosophical question about the nature of credible testimony, how much credence we should give to things and when, and whether I have can have epistemic access to the truth anything at all or whether to constantly remain skeptical, I would love to debate it further with you since I am a professional philosopher and my research focuses on such questions! However, as regards the simple relatively banal question of range reviews and oven performance, I take myself to have sufficient reasons to ask individuals on Houzz to provide their opinions as to whether they were satisfied or dissatisfied with the baking performance of the relative oven types and to provide more specifics than are often present on the reviews at big box stores. I figure since this request is one that people can ignore, there are no perceptible harms to be concerned about in posing the questions and asking for feedback. I like to cook and I like to hear about people's experiences, and the more information the better in my book.