None of the books are in genres I read routinely: nevertheless I've requested review copies for my other blog but I suspect that the authors won't be too pleased with the reviews that they get. Not that I'll automatically give anyone a bad review: but if writers are naive enough to use services like this, then they're also unlikely to know their ARCs from their elbows. And that usually shows in the quality of the finished book.
Look: spamming is not a good way to sell or market your books. Most of the emails sent out get snagged by spam filters or deleted automatically; the few that get read do nothing to promote your book or your reputation. The books that get requested aren't usually asked for by people with any power to make a difference to your sales and at best they're considered a hit-and-miss way to get free books, as this thread over at Library Thing makes clear.
If you want to promote your books you need to target your promotions appropriately. By all means consider using a good publicist but please, don't pay for services like this: you won't see a corresponding return in your sales. The only money to be made in this instance is, I fear, all heading towards Bostick Communications, and not to the authors whose books are supposedly being promoted by them.
Edited to add: I have just received another email from Bostick in response to my request for review copies, which reads:
Where do you post your reviews? Thank you.
Shouldn't they have checked this out before they added my email address to their mailing lists? Or would checking out people on their list of "over 20,000 book reviewers, print, radio, television and internet media contacts" cut it down to a far less impressive number? I've emailed them a link to my review blog and suspect that the writers they represent won't want to be judged by my demanding criteria, and I don't suppose I'll hear from them again--unless they decide to send me more spam.