I don't believe them to be unique in any way. Similar sites already exists and even better. For example casino guru. You can get all the information you need from that site. So my question is why would user want to use a site that only offers a little much information? I understand they are new and in their beta phase. But without in depth information it would be hard for them to attract visitors.
Why do you even compare them with Casino.Guru? Casino.guru is a mediator company and has a different target audience. Casino.guru lists all the casinos while Cave0x is exclusive for crypto users only. You know what? Even casino guru has listed around 600 crypto casino and rest of them are fiat casinos. Cave0x has already listed more than 800 projects.
One more thing is, Cave0x is community driven website and people even make money by submitting new casinos. Don't you see any differences? They have a different goal. Specifically I found their website useful for me.