I'd agree with that. The lookout/scenic overlook off 101 just past the north end of the Golden Gate Bridge is another. If you're willing to explore a bit, and get off the beaten track, the area northwest of Lake Berryessa has a lot of good out-of-the-way spots. The road that goes along the west side of the lake past Spanish Flats goes all the way to Clear Lake, and if you have a really good map, you'll find a little dirt road that cuts over to Hwy 16, and goes through a large area of 4WD trails that have some really breathtaking vistas. I'd recommend staying there overnight, and scouting duting the day. Pick a sunset and sunrise spot, shoot the sunset, stay overnight, and shoot the sunrise the following morning. You'll be glad you did. And you can go through the Napa valley on the way there or back for some more good shooting (or tasting) opportunities.