I paid for a discounted review copy, here is the verdict.
Review
Cepot took a little longer to complete the job than quoted, but I have used many SB blasts from other providers and knowing how effective they are (still) results are the most important factor for me. The results are: this service took my site from position 10/11 to position 2. Even if it slides a place or two, that is a great result.
Report has all the info I need. User names randomized as promised, only one bookmark per account plus generous over-delivery.
If it wasn't for a late delivery I would give this service a 10, but it still gets a 9. Bottom line: well worth the money, and I will definitely be using this on more sites. Good work, Cepot, and thank you.