An email finder with 2k credits each month is amazing value for the price you pay. On top of that, it's great for creating emails with a high response rate. Their software rates it automatically to teach you how to craft better emails, and you can even split test them to really see what campaigns get the best results.

My only gripe would be that it's not worth investing too much manual effort into the multi-channel campaigns due to the 500 limitation... but if you just want to collect emails and automate a split tested email campaign to a segmented lead list... it's amazing value for what you pay.