I've used this service twice in the last month, and the delivery has been superb.
The profile blasts they offer are very good. The majority of links come back clean. For those of you that don't know the difference between 'regular' and 'profile' Xrumer blasts, it's pretty simple. A regular blast tries to push your links into PHP BB Board posts - many times, this results in weird backlinks because board have different URL settings. Profile links are much cleaner and the stick rate is much better because you get a backlink from the profile name and the signature line.
Profile links are what's being offered here, although I know for a fact that Bompa also offered large-scale 'regular' blasts.
My last Blast with these guys resulted in 95 000 backlinks to one of my sites, which is fantastic. The proof is in the rankings, which have resulted in me being on PAGE 1 for this site for pretty much each keyword I selected.
The proof is in the pudding, so here is a GWMT screenshots - I've blacked out the site names so you guys don't slaughter my niche advantage
Hehehe.
The site below was launched At the beginning of May.
Google Webmaster Tools:
TechSmith | Screencast.com, online video sharing, GHG_Webmaster_Tools
Thomas