We visited the first week of August. Very crowded but less so than before the GTTS Road ticket requirement. Honestly, the crowds have gotten so bad in recent years that it's changed how we enjoy Glacier. We drive GTTS road but rarely try to stop at Logan Pass except for a quick break (while someone else drives the car in circles in the lot). I saw only about 4 people waiting for the 7 am shuttle from the Apgar Visitor's Center to Logan Pass one morning at about 6:45 am. Was kind of surprised at that.
You can get in the park before 6 am without a GTTS road ticket, so I saw lots of cars coming in the West Glacier entrance and heading toward Logan Pass before 6 am. (I got up at 5:30 and ran from Apgar through the campground, then up to GTTS road and back.)
Finally, this year the road from Apgar to Lake McDonald was closed for maintenance from 10 pm to 6 am. One lane had a trench dug to install pipes. I assume cars queued up early.
FINALLY, they are building an official entrance station at the Camas Creek Entrance (from Polebridge). Prior to this year, there was only a sign indicating entrance into the park. I'm guessing people were coming in from Columbia Falls without paying entrance fee or showing GTTS reservation.
Hope that's helpful.
