I like that this is an easy to use platform for finding contact information of people in my industry who are willing share their knowledge with me through social media platforms such as LinkedIn/Twitter etc.
It's also great because it will allow your team members (if they have permission) access so everyone can see what contacts we've found! The only thing i dislike about hunter specifically - which may be more general issue- but when searching using keywords there seems no way at all to refine our results down further than city level? For example if someone searches "accountant" within New York City then ALL accountsants listed would show up even though some might not really apply directly back to us. So therefore its very difficult filtering out those without relevant experience. We're solving these problems by building tools ourselves instead since most search engines don't do enough research.