This was a great trail. We did it in 3 days and recommend that time at minimum. We rushed the last day back to the car from Glacier Meadows.
We stayed at Mt. Tom Creek, Lewis Meadows, and Glacier Meadows Campground. Our favorite campground was Lewis Meadows. It doesn't look like much from the trail, but if you follow the trail back back back to the Hoh River, there are some great sites! It's a very private campground with gorgeous surroundings.
Glacier Meadows was a good campground. However, we had some difficultly getting across the rope ladder / loose rock climb just before Glacier Meadows campground. This would have been much easier without packs. We encountered many day-hikers that had alot less difficulty crossing this ravine than we did. If I were doing it again, I would have stayed at Martin Creek and day-hiked to Blue Glacier.
I recommend this hike. There is such diversity to the landscape and worth seeing all of it!