Very clean hotel. Clean, heated, indoor pool. Hot tub was down for repairs while we were there. Hot breakfast items. Plenty of seating.
7 year old had a great time searching for fossils. Brought along a bucket and garden shovel (shovel wasn't necessary there are plenty of fossils on the ground). It was lightly raining when we went so everything was very muddy and there really isn't anywhere to wash up (three cheers for baby wipes). Lots of information about the fossils by the picnic area. Had our 1.5 year old with us. The park is not little kid friendly would recommend for school aged kids.
Free national site. Free tours of the home. Short video about the President. Very informative. Jr Ranger program for the kids.