I would say not to be judgmental before you test it but also if you are starting out new I would advice to go with the huge ones first. I mean binance and bitfinex and all those exchanges are number one for a reason and there is no point of selecting something else.

If the said exchange provides you with something that is better than binance than they would have been known already and since they are not known more than other exchanges that tells me they are not offering anything superior to the already existing great exchanges. I am not saying they are scammers or not, I don't know if you will be scammed or not, I have never worked with them nor I have any insider information but one thing I know for sure is that binance will not scam you and you can always opt for them instead.