The things you should concentrate on when you are looking for a good online casino, has to be the following :

1. Good reputation
2. No Hassle deposits & withdrawals
3. Good 24/7 Online Support
4. Chat feature (Social)
5. Good promotions
6. Good Rakeback
7. VIP Ranking system that are linked to rewards
8. Fast Servers for a good gaming experience

I find that I get this with Stake.com / Rollbit / Roobet / Duelbit.com / Bitcasino.io and Primedice