Restaurants That Lost 20%+ in Customer Satisfaction Over the Past Year in Arizona, US

--Distressed Restaurants with Verified Decline-- Established, well-reviewed restaurants now experiencing a sharp and confirmed drop in customer sentiment. These are previously high-performing venues where the 360-day sentiment was strong, but 90-day sentiment has crashed by 20%+. That's a leading indicator of operational trouble, ownership fatigue, or market-ready distress. Every listing is an independent restaurant (no nation-wide chains), confirmed active with 100+ total reviews and an "Active Heartbeat" signal within the last 90 days. Each restaurant in this dataset has at least one verified and contactable email address.