Regardless of which tool you use, I think you need to use the proper techniques - check this out: http://blog.linkbird.com/en/strategies/the-5-most-effective-link-building-techniques-for-top-rankings-in-2015/
Do you know which one is the best for year 2015? I used text link ads back in 2008 and was able to make constant revenue of $20/month on one of my websites. Right now it seem to have been acquired by some other company.
I use GSA SER, and just under two weeks i am allready ranking for 25keywords in he forex nitche. Allready buildt 2500 Web2.0 links With pr 4-7 Only problem is that it takes quite alot of time to get good at using the software and there is no oneholding Your hands in the process. You need GSA SER + Private Proxies + GSA SerEngines(for good success With web2.0) And just start blasting links, just keep it consistant and it Works like a charm Allread ranking two other sites and they allready ranking for quite a few keywords and getting 200-300 unique visits pr day from the search engines. Give it a try