Well, like I will always say, every casino deserve a place in the best crypto casino's list, so long as the casino have been around here on this forum for more than one year and have been successfully keeping and maintaining a good reputation.
Shuffle have done a great job in this regard, they have been around here long enough and have had limited issues with their users, very few persons and times have I come around here to see someone complain about this casino, and they have always been active to ensure that genuine issues brought to this forum are resolved amicably.

So, if you ask me, shuffle casino sure deserves a place in the best casino ranking, they may not be that popular like most casinos but a good casino is not really about how popular a casino is, it's more of how well and happy and satisfied their customer is with their service.