We are building a Marketplace on Ethereum using Proof Of Humanity registry and Kleros Scrow+Dispute resolver! [Looking for input]

Hey, I am part (Graphic and UX/UI designer) of a team which is building a marketplace on Ethereum.

What makes our project interesting is that only addresses registered on Proof of Humanity will be able to use this platform. We will rely on Kleros Dispute Resolver in a case of problems between peers and on Kleros Scrow for the funds to be safe till the two parts are ok.
We noticed that the PoH community is very interested in using a platform like this to have the possibility of using UBI token (which is stream block by block to every address registered on PoH) to buy goods and services.

We already have a MVP UX/UI on the work (can share User Flow and A.XD links to anyone interested in peeking). Dev team already has a demo working on Kovan.

What I would like to know if any of you knows about any other marketplace build on Ethereum, I don't care if successful or unsuccessful. This is just “to know our competitor” and get to know people looking to achieve similar ideas.

Any ideas you want to share I am really interested in reading :)
And if any of you want to ask me anything or have any questions, feel free to ask!

Thanks!