The Stonehaus at 32039 Agoura Road, Westlake Village, California.

I thought the Stonehaus was okay. Me and my wife came for an event, so we got to try a selection of their food and both a chardonnay and a Merlot/syrah blend.
First the food, the pizza was thin crust, and tasted fine, but nothing special. The hummus was okay, but a little watery.
Both the wines we had were good, easy to drink.
Service was very good.
Ultimately what you're paying for is the atmosphere. The decor is very pretty and the lights at night gives it a romantic feel.

We came on a Tue night and it was packed! Enough that we had to drive around the parking lot twice to find a spot.

I don't know if we would come back if we had to pay for it, but it's worth a visit if you haven't been.