Hi guys, due too much people is starting in this world of trading. Some are coming from the forex world to the crypto world. There are 4 questions you can answer in order to help those newbies in to choose the best Exchange to trade. 
Take in account there are more than 10k exchanges in the market according CoinMarketCap and continue growing up.
Personally I like Binance and Bittrex, they offer you security and low costs in transactions fees.
What Exchange do you use and why?
What Exchange would you recommend and why?
Any complain about some exchange?
Any Exchange has give you problems or difficulty with to withdraw your money?
Take in account there are more than 10k exchanges in the market according CoinMarketCap and continue growing up.
Personally I like Binance and Bittrex, they offer you security and low costs in transactions fees.
What Exchange do you use and why?
What Exchange would you recommend and why?
Any complain about some exchange?
Any Exchange has give you problems or difficulty with to withdraw your money?
First of all you should allways use phone authenticator before you log in, second make sure you have a ledger and you store your coins on your ledger after your done trading.
Now going into your questions, I would recommend Binance for the major coins to trade because of the high volume, great customer support, not lagging when coins are pumping(stupid Bittrex) and Kucoin for low marketcap gems.
I would never use Bittrex if you can buy coins elsewhere, poor customer support, lagging when volume is getting higher and uncertainty with forks.