I have to agree that Frouds fae are not like the frilly fluff-bunny type fairy decks out there (like Doreen Virtue's, for example) in that they are so much more REAL. They're earthy and ethereal (I realize that's something of an oxymoron, but it's true of this deck).
Also, the deck as a whole has so much more balance to it than other fairy decks. It's not all young and pretty women in elaborate dresses with silver or golden wings, it's got darkness in it: not the 'run for your life' type of darkness, but the darkness of life. Gloominous Doom mopes with us in our depressions, but Laiste and Lys will help push us through those stages. Ta'Om smiles behind his grey, poetic mask, seducing us with sonnets and odes and haikus (he reminds me of those 'artists' who dress all in black and sit in coffee or wine bars and recite beautiful, colourful poetry).The Oak Men plod slowly, taking their time with everything, but Taitin grins as she dives headfirst into everything from a new book to a dangerous adventure. What I'm trying to say is that the FO encompases so much more than other oracles, especially other fairy oracles, because it has such a diversity of characters.