I have been using myheritage.com for over a year now, and am amazed at the personal responses in a very quick manner. If it is not an urgent question or comment, I will post it in their message boards. If it is something I need answered urgently, I contact them directly (you will see "Haven't found an answer to your question? Contact us here." at the bottom of the Help page, as well as at the bottom of the Forums page.)
While there are many improvements that could be made, I find this to be a fairly user-friendly site, and also fairly inexpensive. I use ancestry.com for obtaining my documents, but I like myheritage.com for the "fun" aspect of a family tree.