Related Clues:

• In amazement
• Thinking 'Gee whiz!'
• Filled with wonder
• Quite impressed
• Electrified
• Agape, say
• Blew away
• Left dumbstruck
• Very impressed
• Impressed and then some
• Bedazzled
• Astounded
• Struck dumb
• Made one's jaw drop
• Caused wonderment