This is as legit an exchange as can be. Your money is safe with the Winklevoss bitcoin billionaires. I’ve traded hundreds of times usd to btc and ether and back without a hitch. Withdrawals are straight forward. Their security is the best in the business. They are based in New York and fully regulated and insured. Irritating that there are so many negative reviews from people who are obviously inexperienced in crypto. It may be that real crypto users don’t want to have their names here and get harassed by every scammer trolling the net. Which is why I have used an old email and pseudonym.