If I remember the NSS NGAV report, it specifically states that Cb scored as high as it did solely because of its application white/black listing capabilities (from their Cb Protect product), and they also stated that such extensive whitelisting would not be reasonable for many companies.
I currently work for an MSSP, and two of our customers use Cb Defense, and one uses both Cb Defense & Cb Response. Both Defense & Response can isolate hosts, but they are two very different products. Response is more of the Incident Response and Forensics product and doesn't actually have their full AV solution and protection like Defense does. Cb Defense has a limited response capability as you can have the agent go into "Live Response" mode, but the commands available are very limited, basically command line browsing, delete/rename/create files and not much else.
The other two products I have not personally used or have experience with, but I would be wary of Cynet simply because of how unknown it is at this time compared to more established vendors. From other people I know, CrowdStrike is nice, but it depends on how "deep" of their security stack you buy, as they have multiple components, as does FireEye, which I do have experience with. I would rather recommend Endgame or SentinelOne, as they are single agent/single products instead of being split into multiple like FE, CS, Cb, etc.
I would also look into EnSilo and Darktrace for their AI & automation capabilities.