Stayed here late July.
There was a dirt road about three miles with pot holes the whole way. Although everyone was still driving down it slow and fast. Definitely cant take this road with a low rider.
Past the campground to the West Glacier entrance, there will still be a dirt road and pot holes, I believe its another 3-6 miles to the entrance. You'll pass a campsite on your right then, you will hit a paved road.
No phone service ( should be obvious though).
There were 3 spots with fire pits, and a lot for tent campers to park their car. The "4th Spot" right by the river is not an actual spot. It is a boat landing that which the locals use, so don't get in their way and park your camper/vehicle there.
There is one vaulted toilet, no other amenities.
Mountains are gorgeous and bigger than expected! ( from MN)
Very calming and serene. Everyone was friendly!