Review Update 20-12-19:
Over the years I've come to regard Session Boss as critical resource for instantly assessing and organizing my research and work as well as maintaining a living history of my research.

I typically have more than 15 windows running with and average of 10-15 tabs each. At this moment I have 16 windows with 171 tabs,

Each window is related to a particular project I'm working as well as subjects of personal interest.

Session Boss is an integral part of my work flow and a huge time saver for me. Of particular merit is the session backup methodologies that Session Boss offers as well as the ability to export session data-I'm a developer. I hope others are using Session Boss for a work flow paradigm similar to mine even at a smaller scale.
"Finger tip" access to syntax references, type libraries, style guides. Electronic component suppliers, circuit design references, PCI bus specification standards. electronic components etc. Entertainment: Youtube sci-fi audio books, Favorite "real" (non-MSM) news sites and podcasts, Financial assets and trading brokerages and so on.

This is conjecture on my part but given a 50-75Mbs connection speed IMO a system with 16-32 gig and 6 cores would have sufficient resources to maintain 15+ open windows, 20 tabs each for others to Session Boss tab management to enhance their work (or play) flow as I do.
---Previous Review(s)
I love this extension! The ability to export/backup sessions is a feature that should NOT be ignored. Happily I found the export/import feature before having to roll my box back 3 weeks by restoring a system image.