I have been to Su Vino twice since moving to AZ, and I do LOVE their wines. They have great wines, a fun atmosphere and mediocre food/appetizers (at best).
They have many wines to choose from to suit all tastes. I prefer the light, crisp and sweet wines- and Su Vino's Peach does not disappoint!
The staff is pretty friendly, but nothing to rave about. If you go here, it's definitely for the wine and nothing else. Great prices on bottles, too!