I know that this exchange is very popular in Russia and Ukraine. One of Yobit benefits is that it is very easy to deposit fiat money there. Yobit fees are also attractive and very interesting that their fees are changing. For example for one deposit you can have 3% fee and for another (with the same payment method) fee will be only 1.5%. But I totally agree with Cryptoncy.net admins — Yobit is not a safe place to store coins. If you dont have another option to buy cryptocurrency you can use Yobit but immidiately after your've purchased coins withdraw them to a safe place: personal wallet or more trusted exchange like Binance, Kraken or Bitfinex.