I was skeptical at first, but after playing with the Art Filters for a little while they became addictive. I'm not particularly fond of a couple of them--pale and light color and light tone, especially--but the rest are kind of nice. Unfortunately, you do take a bit of a performance hit for the processor-intensive filters, like Grainy Film and Pinhole. I also wish you could combine them--like Grainy Film with the vignette effect of Pinhole--as well as set a few parameters like the amount of graininess in Grainy Film to mimic high ISO black and white films.
Unfortunately, at this small size you can't really see the effect of the grain, but it still works as a high-contrast black-and-white filter. (inset: unmodified raw shot)
I suppose it goes without saying that Pop Art should be used with discretion. While it can turn a warm photo into fire breathing, it can also produce a subtle but surprisingly attractive effect to metals. (inset: unmodified raw shot)