The website doesn't do a very good job of describing the integration,and I've seen a few people asking about it. Basically this is just JavaScript that you embed on your page, no back-end integration required. All your comments are actually hosted by them so you don't have any direct access to comments on your back-end. I have been looking for a simple solution to comments for a personal site, so I tried this out. Integration was dead simple, copy & paste into your HTML. Wouldn't use on any bigger projects until I see the full source, but I will continue to use it for now.