As someone who uses Reply and Lemlist, I think Instantly is quite underrated as a cold email outreach tool. It is not 100% there yet to be honest, but from my conversations with the founder earlier and from my limited use of the product, it has a ton of potential.....and their roadmap looks very promising.
I like the clean interface, the ease of use to set up campaigns and the absence of clunkiness. The warm up feature is included in the plan which is good and the fact that they don't charge for every single sender email is quite generous.
Once they launch personalized images and a few other features, they will definitely be in a position to give the bigger and more established players a run for their money.
If you're someone who does cold B2B prospecting, get this tool while it is still available. -it's a no brainer for this price.