I REALLY REALLY hope that COSS gets traction soon.
Till now their ideas are great and they are quite motivated... but it seems they lack of experienced developers.
Exchange is kinda slow with not many active users. If they start implementing fiat in march without increasing the whole engine drasticaly, it will not succeed in the short run.
Look at Binance, Kucoin and other big exchanges... they have MANY active users and daily registrations. Alone the trading volume of Binance is more than 4B$. Compared with COSS at 10M$ and their perfomance issues it will be hard to get near Binance/Kucoin.
So... if backend is fixed, performance increased and some good coins a firstly tradable at COSS... then we will go to saturn ^^