Very bad, often AliExpress cashback is significantly lower than with other cashback providers. So called best cashback guarantee in fact, doesn't work - you can only use it once. Other aspects: your cashback must be verified and after that it will be payable, verification will take about 1 month or more. While you can receive much faster verification by other cashback providers. Other aspect: withdrowing money from your account: not all declared payment methods are available, for example - virtual visa card, is not available.