AmaZix are good. At least got not scammed with them. Almost all campaigns are paid on time.
Clear rules, and objective evaluation.
not all amazix campaigns are paid for, example, equi capital until now the bounty hunters not paid, in my opinion, you have to find more information. the amazix team doesn't pay bounty at all with tokens or eth to do promotions for up to 5 months but until now it's not paid.