I have a received a free review copy.
Others have already commented on the diversity of the links, the articles, web2.0s, profiles etc., all on respectable sites with good metrics,so I will spare you that.
Let me rather comment on the specific aspect of this being a foreign language service.
In my case the language was Polish, a difficult one to crack, and certainly not a language you will find article spinners for.
I must say I was positively surprised by the quality of content. The links were woven in using our main keyword as anchor, and in most cases the grammar worked out well, in some a flexion would have been needed (genetive, for grammar buffs, but if you use branded links, this is of no concern at all anyway)
The content was unique, well written, well formatted and nicely laid out. Kudos!
Certainly a service much needed in a sea of English SEO services.