This actually used to be one of the smaller conferences, but is growing in size each year. Although, if you compare it to BlogHer, it is small! ;-)
But honestly, you can make any sized conference as intimate as you want by connecting with a group of people and not making it important to try and be too involved to the point you feel overwhelmed. Yes, you want to get the most of out the experience, but not to the point you are stressed.
Enjoy ladies and can't wait to hear your thoughts when you return!