We looked at the Woman's Club when we were newly engaged, and it's beautiful! In the end, we went with the Grain Exchange Room because it was a little bigger, and we weren't sure that the ballroom at the Woman's club could accommodate all of our guests without moving tables for dancing.
We estimated about 150, but I think our final count was only about 130. I think we could have seated 150 for dinner there, but there wouldn't be much room for dancing. I was sort of against moving tables between dinner and dancing, but I know a lot of people do that, and it works out fine.
Let me know if you need any other vendor recommendations - we had a wonderful time at our wedding and I'd be happy to help out!