Been reading this board for a while, thought I would drop what I look at before signing up anywhere. After trying maybe a dozen sites I learned to read the small print first.
First thing is the licence: find the licence number and look it up, and whether they actually accept players from your country. Next come deposits and withdrawals: I want at least one fast e-wallet option, and the withdrawal limits need to be written clearly.
Never judge a site by the bonus alone. Anything above 40x rollover is a red flag for me, and live tables often do not count at all. A decent independent write-up with the current terms can be found here Just Casino before you deposit anything.
I play almost only on my phone, and if there is an app I make sure it comes from the official page. Test the live chat before depositing: slow or scripted answers usually mean trouble later.
Hope this helps someone. Only play with money you can afford to lose.