Hey,
I tested LinkDetox myself for removing our manual penalty. Paid for several credits as every time I used them I received a rejection from Google after sending the reconsideration request (identifying the links, sending mails to have them removed, rediscovering them to see if they were still there, disavowing). All links removed as LinkDetox suggested, still no removal of the penalty.
Then we took another approach, we downloaded our linking domains from GWT, using text editor (dreamweaver in our case) added a "domain:" in front of ALL domains. Then we went over one by one to identify the good ones and removed them from the list, we ended up disavowing about 80% of the domains, then we sent the disavow file and a few minutes later sent a reconsideration request, a week later, penalty revoked.
Now, that we finally had our penalty revoked, we can still go over those links on the disavow file, one by one and if we find that the link was in fact worth having, or not there anymore, then we remove the domain from the list. We also check for subdomains, in our case we had like 1000 links from wordpress.com blogs, from about 5 subdomains. In the first disavow (that worked) we disavowed the entire domain wordpress.com, then we went over all the blogs to see which ones were worth having, and removed the root domain (wordpress.com) and instead added each subdomain (each blog) that we wanted disavowed.
Conclusion: nobody knows the real value of a link just by looking at some metrics like linkdetox does. You know the value, so go over the links by yourself and disavow all those that you think have no value, for example, those stats, or website worth links are useless, go ahead and disavow them all.
Hope that helps!