The only downside is I don't like tron as a currency much and would prefer other tokens to tron like Ethereum but should have a large volume of people and bets. Which is the most successful gambling dapp that you know of?
This is the possible reason why they are not getting the attention and popularity that they should have. They focused in TRX and I don't think people are buying that much with that altcoin but it's their choice and casino to operate and there's a reason why they have chosen it.
I don't know what's the best dapp but take time to surf on
Gambling. I've seen them posting their announcement threads there and you can compare who's better and not.