Seller + lifetime fee is exceptional value. Sales here are much, much slower but have every likelihood of picking up. If you are a true business seller - need your sales to pay mortgage, rent, rates, bills, etc - then this site on its own will not do it for you, but there again probably no single auction site will. Many continue to sell on eB-y as well as here, and also from other venues online and real world. Better not to put your eggs all in one basket.
I hope you do really well.