The first and foremost thing that you would need to focus on is the design followed by these factors:
- Low house edge
- Great customer service
- Zero lag UI
- Bonuses with reasonable rollover requirements
- Popular deposit and withdrawal options etc
If you get all of these right, you have a great gambling site on your hands.
I think a good house edge is 1%. Of course need a 24/7 support to help players anytime. I don't understand the part of bonuses, which bonuses will be the best ?
About design ? Which is your opinions ?