This thread might be of help to crypto gamble companies so they can work on those disadvantages and make your experience in gambling with cryptocurrency more fun and enjoyable.
1. I do see most gamblers are not satisfied with transparency of gambling houses hence a better system than "provably fair" may convince them at some levels.
2. More P2P games. I am well aware of practical limitations of P2P environment. Still, I do see many gamblers are demanding it compared to playing against house.
3. Quick and effective customer support. Even tier-1 houses are now a days replying, waiting for "higher people" to conclude.
4. Well defined TOS. No case to case rules.
5. Enhanced mobile gambling experiences. Gambling on the go is biggest demand for many people here.