We visited the weekend after Labor Day and I'd say the campground was moderately busy, someone I ran into at Logan Pass said they weren't able to get a site there so it must have been full.
I didn't research this campground as much as I should have. This is the largest campground on the west side, serving about 200 sites, and for some reason only has one shower building located on loop A. That building has exactly 2 showers. They're private, you can lock the door to go in, there's a bench outside of the shower portion, and while they seemed clean it wasn't as bougie as the showers at Canyon Campground in Yellowstone National Park. I never ended up trying the showers because after a long day, waiting to shower wasn't what I felt like and sometimes I was so tired I crawled into the tent after packing the food away and slept.
According to something I read online, there is no where to wash your dishes. Dish washing is to be done at your site, and the grey water transported to the disposal area located in loop C. I had no deep desire to haul a bucket of water around or have it sloshing in the back of our car so thankfully we had backpack meals and the only thing we needed to clean was forks which were wiped off with a paper towel and called good. When we used some stuff on the Going to the Sun Road, I decided to walk over to C when we got back to camp. There was a door labeled "Wash Station" and there was soap and a sponge. There's nowhere to clean anything off, so I guess you still need to figure that out if you have a significant amount of bits and pieces left after your dinner. It seems odd to me though that the largest campground on the west side has so few amenities for such a large number of sites.
The campsites are all kind of different. Like we have a huge Big Agnes Bunkhouse 6 and B 118 was a little inappropriate. I picked it so I only have myself to blame, but I recommend checking out any online views of the campsite you're thinking of just to make sure it vibes with your setup.
The bathrooms seemed plentiful enough, although the one closest to us had no soap on either side (as confirmed by my gf). I highly recommend bringing your own soap, however you want to accomplish that.
You can hear a train from camp, which didn't bother me but I know some people aren't fans. Everyone around us was pretty quiet for the most part, and we were a quick walk from the lake and the amphitheater. There's also a trail to Apgar Village and some nearby hiking trails (easy little walks, not hardcore hikes).
I have Verizon and had one bar that just refused to do much for me unless it was like 2am. My gf has T Mobile and her phone worked great!
Even though for the most part this is a good campground and it's worth going back to, I would explore other campgrounds if we 8 get to go back.
