I've been to a couple of UUs in different cities and I noticed one thing immediately. They are totally different in different places. The one I went to in DeMoines Washington was kind of fun, the pastor was kind of a twink, but likeable all the same, but they had a choir and they kept it moving along. Then when I moved to Oregon I went to the one in Hillsboro. It was like a Methodist service, very dry, very serious, no humor, and BOOOORRRIIIIIINGGGG. I kid you not I could not hardly stay awake. There is no way in hell I will go to a boring place, if I wanted to go to one I'd go back to the witnesses, at least I would keep those elders on their toes, me being an uppidy woman and all. JUST KIDDING!
I've heard the one in downtown Portland is quite a bit better, may check that out someday.
What others have said is true, they don't spend all their time talking about god at ALL, in fact more time is actually spent on talking about using your spirituality for good, such as volunteering, etc. Athiests and agnostics are very welcome from what I have seen, and of course they are very welcoming to us in the GLBT community.
All in all a good group of people, but if you are looking for a christian church you will not like it.
Sherry