Zeroin was able to find a more emails than I thought. Also the tool scrapes faster than i thought it would. It's more than enough for my purposes, but not ideal if you plan on bulk emailing/spamming. You get more emails when you use sales navigator and filter by founder, CEO, VP and other top positions. Initially I wasn't going to use sales navigator, but i ended up getting it at a fraction of it's price ($20 per month).