I received a 5 comments giveaway pack and here's my review about it: The comments were made on relevant sites. The sites were built on blogger platform. No wordpress or other platform sites. The sites were content rich, though one of the sites he commented on was spammed to the death. The comments made sense in 3 of the comments and other 2 were just slapped together to fit in the context. But still, the owner took time to do the commenting manually, which is comparatively better than lots of link building services out there. I'd buy from them if I needed someone to do manual commenting for my blog.