First thing I see is "CAN I WITHDRAW MY WINNINGS WITHOUT ANY HASSEL?" and then check KYC rules and lastly this might be a vey unpopular opinion but I like to see the UI of website because if i am willing to loss my money in there atleast make it visually appealing so it doesn't look so bad after all.
to find our those qualities then you must play in crypto reputable casinos and which can be found ? here in forum mate as we have been advertising so many legit casino some may experience issues but the important part is that they are handling with care to remain their players doing it.
and also always check reputation and scam section to look on what the standing of each casinos.
Where you see different people talking about a company is where you can get the most trusted rating and visibility of the product and services of that company. In the case of casinos, one can see a whole lot on the internet, be it direct adverts or embedded links, but in reality, they are not to be trusted. This is particularly true if such a site is even a reviewing site, they will always say good things about their paymaster which makes it very risky to trust. The best place to read reviews is the place where people like to comment about the company and not the site owner alone. I can assure you that if you read about 30 reviews randomly and insightfully, you will be able to know what the company can and can't do because the experience of others will be able to guide you in this regard.
Specifically, I mostly look for withdrawal and customer support issues in my casino reviews. Withdrawal is the top-rated consideration in my own, but customer support is also very important as I dislike irresponsiveness and arrogance. Others are not so important to me because they are similar with casinos. Is it security? No booming casinos would want to be lagging in this regard, while other factors are similar which I do not take too much reference to. A very good example is "forums", which is where a casino is being discussed mostly in an unbiased way. I bet that you will not be missing out on the truth to help you choose in a community like that. A good example is here, we are not gentle with bad products or services, and I for one make sure that I propagate for the best so that I won't be tagged bad by my conscience and by my fellow forum members.