I've been using Muraena for a few months now and i love the UI and a solid team. The data is also improving so I'm glad i grabbed this for my cold outreach campaigns.

I do recommend verifying emails using a third party tool like Reoon (can also be found here on AS at the time of writing this review). The number of verified emails isn't a high as I have used with some other tools, but the value here is worth it and therefore worthy of my 5-tacos!