I like that this software can also verify my contact lists with other databases such as LinkedIn or Google+.I dislike when you use too many options at once (for example all of them). When using multiple contacts in one row sometimes some don't get verified so be careful! You should check out any similar services they offer more data sources for your database/list if applicable. We are able to find new leads through our mail campaigns but we have not had issues verifying those people who receive direct marketing from us yet - still early days though.