I recently planned my wedding at the Unitarian Universalist Church of Berkeley (it's not actually in Berkeley proper, but up in the hills in Kensington). The venue itself was really wonderful - great spaces for the service itself, for food, for photos, for chatting and for dancing. We rented the whole space, including chapel, atrium, fireside room, and social hall, and we used all the space: we had the service in the chapel, food in the lovely tree-filled atrium, dancing in the social hall (a hundred people dance there easily), and a calm space for chatting and games and arts and crafts in the fireside room. We were having a casual wedding, as you can probably guess from the crafts and games room, so the space was perfect for us: casual and easy to use in a bunch of different ways. One real benefit of the space for us was the natural light; the atrium is all skylights, the fireside room has a ton of windows facing west, and the outdoor terrace faces west as well, so we had lots of afternoon light. It made a great place to take photos, too, because the terrace was framed by a view of the Golden Gate Bridge across the bay and, later in the evening, by the sun setting behind the bridge. A lot of people stuck around socializing for a long time after the wedding, hanging out in the fireside room or out on the terrace and watching the sun set. We also had a good experience with the kitchens and the stage in the social hall; our caterer and band found it easy to set up and manage their various responsibilities, and said that the space was well laid out for them. I would recommend the venue for people planning casual, outdoorsy, or summery weddings - the space is really great, and the view can't be beat. But the church doesn't do much in the way of organization for you: you'll have to have people in your party who can plan the layout of tables and chairs and can set them up on the day of the wedding, whether that's friends or family or your caterers.