As I understood you're trying to advertise crypto-shex, in case the purpose gaining attention, best thing is that exchange offer a good service + friendly and easy to use platform also fast, because people with high volumes would rather just not touch new exchanges which are risky and look dodgy and offer nothing new or special.
I'm not even a big investor and I rather use well-known or a trust able exchange, so in case you want to get members you need to prove to the users the fact the exchange is legal + not gonna close soon + trust able as in not easy-ably hack-able or glitchy.
The only thing you can reasonably verify out of all those aspects is "well-known". How legal the exchange is can be difficult to determine except in Japan right now where licensed exchanges have only been in practice for a few months. Aa regulations and laws change, so can the legality.
Not gonna close soon? Sites can and will close as and when they do. Whether they do so gracefully and properly is really a matter of luck I'd say, though with Japan's regulations requiring insurance of depositor funds there is some protection afforded.
Not easily hacked and glitchy? No exchange is safe from this. Don't buy what they say about their security. It takes one negligent employee to compromisethe entire site.