Ok so i got this service about 1.5 weeks ago on one of my blogs - so heres my review. Including the pros and cons of the service.
Im totally obsessed with the smartphone niche - why simple - Theres a new tablet, phone or new version thats been launched every other day.
So what you say - well unlike established niches i.e iphone or blackberry which have unreal competition - this works perfect for this small niche sites and just writing a couple of posts on the item and then using this service will not only guarantee me visibility through stumble upon and digg would be that extra juice i would need to really look legit.
This service has everything you would look for; from the DIGG service, to the stumble upon submission.
I got everything i wanted - including the reports within the alloted time.

Had my site move from the Third to the second page (Pretty competitive term . When its all said and done - in the future ill schedule about 3 posts i.e best xxx stuff post and have the submission done for that particular post.
By focusing on the post - im able to rank for that particular term better than focusing on the root domain , which is something that i have observed with most of my competitors.
Thats the only "Oh shit moment " i had with this service. If you are going to use it and youre in a hyper competitive niche, take a sub category of that niche and write a post about it; then use this service to absolutely murder the competition.
So ya Its Pretty fucking Dope.