Dobi exchange is one of the recent exchange from China. It was evidently born from coinbene, an exchange that already earn very bad reputation because of financial misconduct.
Dobi exchange is a crypto currency only exchange meaning that it doesn't deal in flat currency. The exchange supports many cryptocurrencies and altcoins. One major advantage they have over other exchanges is that their trading engine is very fast. It can complete 10,000 transaction within one second.
Another good factor about them is the transaction fee which is fairly within the industry standard. It charges a flat fee of 0.30%-0.10% from takers and makers. However the withdrawal fee charged is too heavy. They charge x10 of the industry standard of 0.0005 BTC which is 0.005 BTC.
All their positive factor has however been rubbished by the 2019 scandal report from there traders. They have been accused of many financial misconduct and lackadaisical attitude to major matters. On account of this, please beware of this exchange.