Product review (5 stars): Great!  Odors greatly reduced
When our kitchen was remodeled, the stove was moved and the old ducting was not in a convenient-enough spot for a new ducted range hood.  So we had to "settle" for a non-ducted range hood.  At first, without the charcoal filter - just the grease filter that came with it - the odors were quite noticeable.  But since we got the added odor filters, it's GREAT.  In some respects, we're happier with this arrangement now because we don't have heated air going up the ducting in the winter and wasting home heating money.  Yes, it's a bit warmer in the summer not being able to take as much heat out of the kitchen, but that's a temporary thing compared to 24/7 wasted heat going up the old ducting.

And the pricing through Amazon was far better than we could get the filters locally.