Very good product!If you cook with a lot of heat and oil (typical Chinese style for example), you will love this product way better than the weak ones or the ones that don't have real ventilation.This is a carefully designed product: simple and solid surfaces. The control panel is simple and well organized, this range hood even reminds me of Apple products. It's delightful to touch and use. The handyman who was installing it praised its efficiency.It's very powerful in terms of getting rid of smoke and food odor. When it's running w/ full strength, we can't even smell the food 2 meters away or in any room above kitchen area. It's reasonably quiet. I haven't tried the auto clean feature but it looks like a well thought through feature as well.The seller was very responsive to my questions before and after the order. The seller is knowledgeable about installation and cares deeply about his/her customers.