Just got my second order done by Amit. It was for a new site, Amit recommended both 100 socials and 500 manual directories, went for both. A few hiccups but nothing serious, and so far Yahoo is loving the result. Google not so much yet, but will likely take time due to Google's aging algos and increased focus on quality over quantity of links.
Would I use Amit again? Absolutely, in fact I've integrated his services into our future marketing strategies now.