Often I find that graphic novels really don't make much use of the graphic part. A lot of time I see no reason these things could not be in a more traditional form of media. Saga is one of the rare ones that makes full use of its medium. The art is just fantastic, the character designs are just off the wall awesome. Characters with TVs for heads, planets that have weird demon space babies inside, intricately detailed cyclops balls! The imagination that went into this is so refreshing. 
 The characters are great. They are well written and believable and act as you would expect them to act. Breastfeeding badass Momma and stay at home dad are so rarely seen in any form of media that it's really a breath of fresh air. The writing is so good that it makes you feel for a cat, a fucking cat! 
 The plot is probably the weakest part but the plot is not weak, we have just seen it before. star crossed lovers in the middle of a war. It's nothing new but it's not bad. The plot is really there just to show you the amazing visuals and wonderful character interaction (as a parent, it's nice to see new parents actually talk about how babies are wonderful...In small doses.) 
 I really can't recomend this enough. It's worth grabbing the deluxe edition as the price is great and has some really interesting stuff on the process of creating the comic.