Ranked in these QuestionsQuestion Ranking
Pro Layer Sharing
Features such as 'Layer Sharing' allows you to quickly update shared components such as headers across multiple pages. Other mockup tools such as Mockingbird will require you to manually propagate changes across all the pages.
Pro Can be used for the entire life-cycle of the design
From lo-fidelity wireframe, into clickable prototype and then assemble the images for the final hi-fi build as well.
Con Is being phased out
Adobe is ditching Fireworks. So those nasty bugs will never get fixed.
Con Crashes every once in a while
It is prone to unexpected crashes. Frequent saves are recommended.