Pretty much any item can be sold in either fixed price or auction mode. The User Interface of the www.dstors.com will be very intuitive and easy to use.
Yes, very similar to other online channels.
The advantage of dStors is that we incentivise both buyers and sellers by rewarding STORS tokens after each transaction. These tokens can be spent for upvotes on Steem or Whaleshares.
So, dStors is providing incentives post transaction while other online channels are not able to.