The main "problem" will be liquidity. On a technical level everything worked fine during soft launch and I don't see any big issues arising there. But liquidity is ultra important, because only with liquidity you will attract more people, which then turns into exponential growth. Pre-match liquidity isn't even that important, but exchanges live and die with inplay liquidity - trading sports events is the bread and butter for them.
You saw and still see other fiat exchanges struggling with this and with a crypto-only betting exchange this is even more of a challenge. And all this with the biggest exchange not being accessible for loads of people, where you would think that other exchanges get/got a good market share, but this is not really the case.
You can compare it with Poker, where we have SwC Poker present in this forum, who have a super cool software, which is working fine; no KYC. They even sponsor a private Poker Series in here, but they struggle with getting players as well, because everyone is playing at PokerStars where there are loads of tables, tournaments, Sit'n Go's 24/7. So there is no reason to leave (you have already been KYC'ed).
Sorry for hijacking this thread with SwC things @exbet.io, but I think your situation/challenge is comparable.
Market-makers, low commission (1% is super cool), good support, community building, maybe some promos, social media, marketing. And then pray and have patience
Superb answer, hitting multiple nails on their head!
We won't add anything, too busy taking notes