I've had a great experience on answeree.com. I love the streamlined interface and the ability to ask and receive answers from knowledgeable people. I also appreciate the vast array of topics available for discussion.
I think one thing that could be improved is the ability to filter questions more easily. It can be difficult to find a specific topic when there are so many questions on the site. Additionally, I think it would be great if there was a way to receive notifications when someone answers a question you have posted.