I had recently ordered 100 bookmarks pack for a video. The orer was delivered quickly and I got more bookmarks than I had ordered. So, there was overdelivery. I randomly checked a few links and they were there. Also, the video got a sudden ranking boost after this order was completed. I hadn't done any other linkbuilding work on the video recently. Even though the keyword I was targetting was not competitie (it was a local dental related keyword), I am quite happy with the service and the results I got so far. Thanks