Related Clues:

• Warm and friendly
• "Groovy!"
• Nifty, in the '50s
• "Way to go!"
• "Wow!"
• 'Peachy!'
• 'Sounds swell!'
• "Swell!"
• Easy partner
• Word of approval
• 'Terrif!'
• Upscale
• "I'm impressed!"
• "Nifty!"
• "Good job!"