Love Sushi Ken! It's the only place I keep going back to...and it's a hike for me from downtown Phoenix, but totally worth it. Great prices - between $3.50 - $5.50 for sushi - and the fish is double the amount of rice. Rolls run between $5 - $9.50 and they have a great selection.
Like others have mentioned, it's not a fancy place - fine by me! It's very authenticate. Sunday nights it's pretty slow so you get fabulous service - and they're always fast to deliver the food. Tried the sweet and spicy roll for the first time tonight and loved it! The only reason i don't give it 5 stars is b/c i've been there when it's busy and the servers can't keep up.