Umm Ma'bad described what she saw of the great Prophet (peace be upon him). She said:
"I saw a man, his face radiant with a bright glow, not too thin or too fat, elegant and handsome. His eyes had a deep black hue with long eyelashes. His voice was pleasant and his neck long. He had a thick beard. His long black eyebrows were beautifully arched and connected to each other. In silence, he remained dignified, commanding utmost awe and respect. When he spoke, his speech was brilliant. Of all people he was the most handsome and the most pleasant, even when approaching from a distance. In person, he was unique and most admirable. Graced with eloquent logic, his speech was moderate. His logical arguments were well organized as though they were a string of gems. He was not too tall or too short, but exactly in between. Among three, he appeared the most radiant and most vibrant. He had companions who affectionately honored him. When he spoke, they listened to him attentively. When he gave orders, they were quick to execute them. They rallied around him guarding him. He never frowned or spoke frivolously." [Hakim]
"I served the Prophet of Allah (peace be upon him) for ten years. Never once did he so much as express any bit of displeasure nor did he ever ask 'Why did you do it?' for something I did or 'Why didn't you do it?' for something I didn't do."
Taken from: http://sunnahonline.com/library/the-call-of-islam/415-introduction-to-islam#h14-tolerance