We stayed in early summer in D141. It was still a bit chilly, and the wind at the campground made it chillier (and also blew things around a lot). I'm not sure if that was a single weather thing or if it's always windy there, though. The site is a walk-in site which my oldest thought was annoying, but I thought it was nice. Our tent wasn't right on top of other tents and our site was huge because of this.

We saw tons of wildlife right in our site, and the nearby trails are some of the best if you want to see moose (we did!). At dawn and dusk, you can hear the elk that hang out in the moraine singing. 

The bathrooms by our site were a comfort center, so flush toilets, running (cold) water, soap (usually), and even hand dryers (cold air). They were pretty clean and I'm SO glad that these were the bathrooms I had later in the visit when I got sick from the high elevation visitor center and spent the entire afternoon going back and forth to the bathroom. We didn't check out the solar shower stalls. We do bucket washing and they were a ways away from our tent so we just waited until our next stop where we could have a shelter tent to wash up. 

People at this campground were very quiet and respectful. One day we woke up to a dead car battery and a neighbor kindly came over to jump us. As the elevation of this site is above 8,000 ft, our solar panel charged our solar generator super fast in the afternoon. More info in the picture captions.