This place is absolutely gorgeous. My idea of paradise. Not fancy (for camping - I didn't see the B&B part), but lovely and very peaceful. Each site comes with a fire ring, a picnic table, a private hot tub and a gorgeous view of the nearby Sierras. They drain and scrub the hot tub after each check-out, so we arrived to our tub filling with beautifully clear natural hot spring water. There's nothing like soaking under the stars in your birthday suit. Each site has quite a bit of privacy, so if you're shy, this is the place for you. The water comes out of the ground at approximately 135° F (57° C). If you want to cool it down a bit, just turn off the spout.
They are dog friendly and as long as your pets (and children) are controlled, they do not have to be on leash. Yay! Stella spent most of her time frolicking in the beautiful little meadow adjacent to our site. (If your children are unruly, I'm afraid they will have to be leashed.)
There is a small grocery nearby but not much else, so bring your water and supplies with you into Benton. But even if you don't need anything, I would recommend paying a visit to the store, just to pick up some cheetos and a diet coke. And the local paper. The people who run it had lots of interesting stories about the area and they were raising baby chicks in front when we stopped by. A must visit.