It may be good, it may be not, I don't know. They approached Bleeding Cool in an e-mail asking if someone would review it, which is all fine and dandy,
They asked "Is there a cost associated with the review and communication on your site?" which is odd but possibly not unheard of. There are costs involved with reviews, this might help amortise them, as long as it didn't affect the review itself. And it would have to be declared.
But they concluded the e-mail asking "Is there a fee needed to help ensure a positive review?"
Just in case you read any positive reviews of My Comic Grader elsewhere. Bear in mind a fee may have been paid to ensure it.