So for starters, some of my roles previously and currently have been security in IT. So a couple things you'll want to know right off the bat is:
You have to provide your LinkedIn Username/Password.
- I don't believe the automation they're providing is possible via API, so that's ok.

They don't currently have MFA options, at least not that I can tell.

Their app mimic's human behavior, which means it's only going to be so fast, and they have a ramp up thing to protect your account that makes it slower in the onset, and faster as days go on, with limitations on what LinkedIn allows.

Their database of information appears less complete than other tools I've used. Like SalesQL

You can't automate posts to your wall/board.

I can't see a way to add conditional statements: e.g. if contact responds to direct message, stop campaign for this contact.

Now that, that's out of the way. Here's what I like, nay, love.
Really intuitive and clean UI. Simple enough, and empowering with the variables.
You can create connection campaigns around basically anything it appears. Links to groups, links to SalesNavigator searches, links to regular searches, links to posts to connect with people who engage in it.

Part of the mimicking human behavior, is I honestly believe they care a lot about not getting you banned. They're willing to upset a couple people with it not going "fast", for the sake of ensuring their app automates day-to-day operations vs acts like a supercomputer and ends with you banned thus making the point of the app moot.
The above makes me think maybe they care heavily on the security front as well, but that's conjecture on my part, without getting under the hood there's only so much you can say.

I don't know what other people's problems have been but the support staff has been ON POINT so far. Fast and helpful.

I'm excited for a new Deep Enrichment campaign they appear to be working on.

It would be cool to have an option to leverage and schedule AI generated posts.

Why 4 stars and why I'm sticking with it: It automates exactly what I was looking for at the time. Connecting with more people. Not only does it automate it, it automates it REALLY well. Only thing maybe missing on this is the conditional statements to the messaging piece, but I can live without that for now.
The dev group, has me excited. I think there's some real potential here, and I love the thought of being an early adopter on this one.

Take this all with a grain of salt though; I haven't used other automation apps before, and I don't think I will at this point either.