Let me be straight on this - it's one of the best service in current days ! Ok, I might sound like a fanboy, I given details below -
1.) Communication: 9/10 - not much to say here - almost all providers (except some snob and few newbie scammer) stay online almost always, OP is no exception here !
2.) Order experience: I got a pre-sale review copy, OP came to me with review-proposal - I have given him my toughest one (this particular site I was trying to boost for 2 weeks - no matter what I do - it was simply not moving) - he accepted it and started right away.
3.) Reports: I got all the reports to review at 12th day (day before yesterday) - looks pretty neat - I just checked few links, all are with usual quality. In fact, I did not go through much depth of the reports assuming that it's just another service that will not be able to boost my site for sure ! Being a service provider myself, I tried my best strategies on that particular site and I also got few reviews from other service providers - nothing changed ! So I just assumed that it will be no exception and forgot about it !
4.) The surprise: OP contacted me today a few hours ago and told if I'm ready to post a review in his newly posted thread - I was just surprised and told him like "bro, you sure you want a review from me ? Think again, cause there's no impact to my ranking due to your service - so I have to be honest ! Better we wait a few days, cause it's very early too - give it 2/3 weeks till the major portion of the links indexed, then there's possibility of a SERP rise ! - He said like "did you not check the ranking lately?" His confident tone was telling me there's must be something, I was very excited - so I just checked the ranking and boy what a surprise ! My site was almost at 100th place - I was simply not expecting anything more than 10-20 place boost by any damn SEO service in this earth - but I am happy that I had to eat my own words !
5.) Proof: A picture tells thousand words, so here's the graph for you guys - I am sure you almost haven't seen anything such amazing post-penguin !
6.) Conclusion: Now I checked the reports OP delivered - links are usual quality, but the secret lies in the huge structure I think ! The way he built links, the way he given huge backup to the majority of the links he built - awesome ! No surprise it given such a HUGE boost in such a short time - I don't know the rank will stick or just a short boost - fact is the rank is there for 2 days and I wasn't able to move the site even 10 place with lots and lots of effort and few hundred dollars investment ! This was a review copy - but I will be very happy to pay even the full price if OP wants (just kidding..lol) !