I have had great and amazing sushi, where I wanted to weep silently and kowtow to whatever created the amazing sensation in my mouth. Just not in AZ.
However, in AZ, there are definitely tiers of Sushi restaurants, for simplicity sake, tier 1, tier 2, tier 3 (1 is the best). Sushi 101 firmly lodges itself in tier 2. The actual fish itself is just "meh" but the happy hour specials keep me coming back to this place.