I agree with Feeshy here, I was very interested in PFK, untill I actually read it. I'm very glad I only bought it once and didn't subscribe right away like I was planning too. Perhaps I simply had a one-off bad one, but it was incredibly boring to read, mostly concentrated on the same (at least sort of) fish and way too many pages full of advertising rather than helpful information.
I think I'd rather spend my money on fishkeeping books than magazines.