I got my reports, and they were very professional and prompt. These look like social bookmarking/article websites.
Effects so far?
Google:
The harder keywrod hasn't budged It is still on the bottom of page 1, but it didn't drop.
The easier keyword moved up to the top of page 1 from the middle.
So this service is fine, and it should give you a boost on an easier to moderate keyword., or on a page that isn't even indexed.
And even though it didn't seem to budge a tougher one, it didn't hurt either - and there may not have been time for all of these pages to get crawled.