I am extremely impressed with JA Comment. I installed it and was prepared for a long process of figuring out how to make it work. When I went to see what it does by default, I was blow away -- it already did everything and then some. I had a ridiculously powerful comment on my articles with all bells and whistles literally after installing and enabling. I have customized some, but did not need documentation, the admin component was self-explanatory. Awesomeness. Now I can watch some stupid TV instead of tinkering further.