From my above knowledge I can suggest user can use it but support team should…
From my above knowledge I can suggest user can use it but support team should more active
Pros
Poloniex exchange offers a lot of value when compared to competitors like Bittrex. For one, Poloniex’s user funds are stored in cold wallets. This means that your funds will not be online, i.e. no one will be able to “hack” or steal your coins. Poloniex only keeps enough coins online to make sure there is enough to go around while trading.
Cons
Poloniex has temporarily "lost" people's money
During high usage and DDOS attacks, Poloniex has been known to lose users' money. They can takes days/weeks to respond to tickets, holding funds and transfers and not responding to ticket requests.