Dave,
Thanks for asking this question....we have been waiting for some positive review on this tool to pull the trigger for a while.
I would say that even a small recovery would make us more than happy to use the tool. No need for major changes.
For now we have been using RMOOV to manage the manual removal requests to webmasters and Link Detox to identify and classify our incoming links.
I agree with Marie that only time and hard work will get us there. But, again...if Link Detox Boost is capable of expediting the recovery even just a bit...I am in.
Luciano