The only thing i have against a RAW diet, is getting the combination right so your not under/over feeding and missing out on certain nutrients. Other things like it being "expensive" and messy.
Pet food manufacturers love to perpetuate such myths and fears (aka FUD). Do you buy only pellets for the children in your family, lest you miss out important nutrients and over/under feed? LOL Nutrition doesn't work like that, a first year student could tell you so.
Raw is not expensive. A 'premium' sack of crap-in-a-bag is about £35 or more. Raw feeding costs as little as £3 to £5 a month for an average sized dog. Mess? LOL I feed my dogs in their crate and/or kennel and/or on the ground outside. They chew and tear up their carcass/raw meaty bones and eat it. Then they're finished. Hardly messy.