We were going to stay in Kanab to visit Zion and associated scenic byways but changed our mind after reading tripadviser reviews.
Hotel is great, clean, friendly staff. Easy access off interstate, new hotel. Excellent 24 hr grocery store with great deli minutes away. Many chain restaurants within walking distance. Only drawback was we paid $120 a night which was overpriced I thought with no free breakfast.
Hotel is 50 minutes from Zion, which after three days gets long. My advice for visiting Zion would be to stay at the Best Western in Springdale, right next to park.
Another thing to beware of is the strange licensing laws in Utah - three drinks only with a meal, one per hour thereafter. They will not bring a drink to your table until you finish the one you have.
We bought liquor in Mesquite Arizona on our way to St. George from Las Vegas

We generally prefer Marriott hotels, but the Courtyard St. George is a cut above. The staff makes the difference; they are, to a fault, friendly and efficient. The mattresses are excellent and the entire hotel is squeaky clean. Overall, an excellent choice for a good night's rest.

This is a new, clean and beautiful hotel. Our stay was wonderful! My only complaint would be that for the price, I think breakfast should be included. The price is definitely up there compared to other hotels and they still charge 8.95 for the breakfast buffet. Just a little thing, but our stay would have been perfect had the breakfast been included. As a final note, the free morning coffee for the guests is the best coffee that I have ever tasted in my life!

We used points. This is as good a Marriott as I have ever stayed at. First class all the way. My hat is off to the staff. Night staff was wonderful we arrived at 2:30 am! Thank you thank you! A++