What are the good indicators of fake conferences?
In your description, there are three telltale signs that the conference might not be very good:


The reviewer email is revealed: a conference that doesn't protect reviewer anonymity (blind review at least) is probably not very good.
The review itself is, frankly, not high quality. It may make sense for a standard conference scientific committee to appoint another reviewer if the first one didn't do his job properly.
Financial details appear very important to the organizer…


To make your final decision, see answers to this question: check out the organizers and invited speakers.