What crypto trading platform is SAFE?

Hi. i use bitfinex to trade bitcoin, etherum, iota and others small coins and I heard that this platform would be scam. It is really true? I have withdrawn a fairly small amount last month around 250$ without problems. I searched on google "bitfinex scam" and found a lot of bad things about bitfinex and i dont know what to do.. do you think bitfinex will fall in the future? What platform to choose?