I like what I see so far. I've been using Lemlist for a while in combination with Sales Rocks.
And, Sales Blink is loaded with more features than the other 2 products.

I especially like the fact that you can add different email addresses for the outreach campaigns. The limits are rich so no complaints on that front.

The only downside at the moment is the data. There's not enough data for the niche and sectors I'm targeting. And for certain countries, no matter what sector you target, it shows the same 280 odd email addresses. When I spoke to the support, they said, new data will be added soon. So once that happens, it would be my go-to tool.

All the best guys!