Not much, and this is actually the third time I encountered a post/write-up regarding them. If you don't really need the fancy features that they offer, binance, poloniex and other reputable crypto-exchanges would be my suggestion. However if you still want to try their services and be one of the first reviewers, feel free to do so but tread carefully and only use small amounts just for the sake of testing.
How legit are they, are the money insured and stuff like that?
Legitimacy is only up until one point. Slow death already pointed you to some references and you could just as easily know whether they are the real deal or not. As for insurance, most exchanges are now trying to get one to cover-up for losses in the event of theft or any other unfortunate scenario, but still, err on the side of caution and not send huge funds yet on this exchange.