One of the best backpacking trips I've done! Hiked this Labor Day weekend with a small group of friends. Absolutely wonderful trail with a wide sample of what Rainier has to offer. We camped at Eagle Crest 1st night and Ipsut Pass the 2nd. You get views of the mountain ahead of you this way rather than behind.
Hard enough that my legs were sore the next few days but still very manageable! Would have loved to spend a 3rd night on this trail to linger around Spray Park more!