Betnomi has the biggest in play market, so I'm planning to bet at them, but I don't know if I can trust them or not.
Betnomi have a history with slow and manual withdrawals so don't expect some automatic system like with bigger more reputable casinos.
I don't think they are scammers but with all casinos you can get restricted and limited if their system notices suspicious behavior from you.
If you want to use something that is reliable and works I would go with Sportbsbet, Livecasino, and maybe Fortunejack.