He's also done a few other side projects and seems pretty involved in the startup community.
The book also includes feedback from pretty respected people in the small startup space:
Patrick McKenzie - Kalzumeus Software
Brennan Dunn - DoubleYourFreelancing.com
Gabriel Weinberg - Founder of Duck Duck Go
Josh Ledgard - CoFounder of KickoffLabs
Brian Casel - Founder of Restaurant Engine
Dr. Sherry Walling - Clinical Psychologist
Hiten Shah - Crazy Egg & KISSmetrics
Justin Jackson - Product People
Nathan Barry - ConvertKit
Also the book is only $39. Mike should pay me for this promotion, haha.
And no, I've literally never met Mike and have zero connection to him other than I bought his book and sent him an email asking a question about it once.
So, if you want to run a SaaS business w/ SFDC, be prepared to jump through constant hoops for auto-renewing / re-occur "closed won" opportunities.
It's my goto PDF and epub reader.
Ch.4 on "nice to have" vs "need your solution" is especially good because it's where many companies fail.