Their sound is very old school rock and roll. They definitely have a 70s feel and I'm diggin' it! (Did they say that in the 70s??) I won't try to compare them to other bands because if I was a professional musician that would drive me crazy. I'm sure they would like to be known for their own sound and not someone else's. On a different note, if I'm not mistaken they are from Saskatoon - Canadian - which only adds to their cool factor.
Probably you've already heard of them, considering they were on the cover of Rolling Stone recently (I think)... Here's a video in case you're interested!
Side note: seems like a very appropriate band to post about considering I have a sheepdog of my very own sitting at my feet!