I'm giving this four stars as a quick stopover point- nothing against the resort but Dillon isn't a place we could find much to stay longer term for.  We had a really clean, level gravel site- that was a pull through, for $45 a night.  Fair price and as others have said, the park is clean and very convenient.  Our site was an end site and therefore felt pretty roomy.  During our stay the wifi was pretty horrible, so much so I'd say you should plan to bring your own internet connectivity.  Lastly, there is pretty decent shade on most sites.