Possible Clues:

• Top quality
• High-grade
• Of the highest quality, rating-wise
• Saucy high rating? (2 words)
• Splendid
• U.S. visa type issued to visiting diplomats
• "I'm so glad you have ___ track mind like me" (Train)
• Best-quality
• Of the highest quality (2 words)
• Top of the line (2 words)