When Substack is the right choice
Substack is optimized for newsletter publishing. If your offering is "access to my writing for USD 5-10/month", its UX (especially the mobile app) and its recommendations algorithm are the best in market to start. Entry barrier is minimal: build your page and go. The strongest criticisms — non-existent human support, Trustpilot 1.3/5, ambiguous AI policy — weigh more the more serious your business gets. For consolidated newsletters in US/EU it remains a serious option.