Related Clues:

• Best possible
• Just right!
• Meriting a 10
• Rating a 10
• Just perfect
• Lofty goal
• Double vision?
• Prime example
• 10, in some cases
• High standard
• Best imaginable
• Embodiment of perfection
• Like Shangri-la
• Old toy company that made Rubik's Cube
• Worth emulating