Physical therapy including manual therapy and manipulation as effective as steroid injection for shoulder pain

Study from this month's Annals of Internal Medicine found physical therapy (which included manual therapy and manipulation) to give the same improvement over one year as steroid injections. But the group that received injections used more health care services and had significantly more shoulder-related doctor visits during the year of the study.
Has anybody had experience with these two treatment approaches and which one seemed more effective?
http://consumer.healthday.com/bone-and-joint-information-4/bone-joint-and-tendon-news-72/skip-the-steroids-for-shoulder-pain-690444.html