What impression did the author have of Stein's earlier work?

The author expressed a positive impression of Stein's earlier work, highlighting that it greatly impressed them. This indicates an appreciation for Stein's writing style, themes, or contributions to literature. The use of strong positive language suggests that the author found value and significance in Stein's work, viewing it as impactful and noteworthy. This admiration can stem from various aspects such as innovation, emotional depth, or intellectual stimulation found in the earlier pieces. Understanding the author's perspective in this context highlights the importance of appreciating literary contributions and recognizing influential works in the field.