@sarahpanda It's just another feature which, off course, you do not have to use. But, try it, you might like it. The oven utilizes a fan that circulates the hot air so it cuts down the time to make something.
The rental townhouse I live in now does not have this feature in the Kenmore gas wall oven and broiler. The previous townhouse rental had a GE glass top electric range that did have it.
I used it and it wasn't overly noisy but you have to get used to the faster cooking/baking time. For baking I usually skipped it, but for the oven roasting of meat it was handy sometimes, but I'm not missing having it.
My Oster XL French Door oven--that I purchased from QVC--that I love (which is used at least once each day) has the convection feature and that IS fairly loud so, typically, I seldom use it. The Oster itself is approaching four years of use and is still going strong.
I enjoy cooking and am usually not in a great rush and am used to my techniques and recipes and cookware that I've used over many, many years and I enjoy getting my usual good results without needing to adapt to a lot of new bells and whistles.
aroc3435
Washington, DC