As far as i am trader (not investor), I use about 7 exchanges daily.

There are some notes for Coss to thing about (if they care)

1)Order books need to be seen on both sides at first page (without a need for additional scroll). It isn't convenient to scroll at the bottom through all the sells and buys. As well as, if you want to scroll to bids, you need to click somewhere away from asks, otherwise you scroll asks all the way down.

2)While I was waiting and searching for trades, exchange dropped me like 5-6 times, that's too fast.

3) On the tab - https://exchange.coss.io/pair/eth-btc, when I scroll the left part of the page( currency pairs), when i end up with the list, the right side also starts to scroll down, which is not needed.

4)Graphs of the currencies look awful right not, not informative at all. And grey colour isn't easy to get.

5)There is no need in the upper bar with deposit/withdraw, right from the page. Unless, you want your exchange to be only for arbitrage trading.

6)Haven't found any "my orders" page, which would accumulate all orders i have on the exchange. Maybe it is somewhere, but i don't see it.

7)When i am on the exchange site, I don't need to see TEAM/Merchants/..., i want to have everything to trade. Exchange is not your ICO website, you can use your space wiser.

It's just my IMHO, if you are interested in such help, i can continue on investigating the exchange structure.