Is it worth the time and cost? What doors did it open for you?
My MA TESOL only paid off when I moved into community college/adult-ed roles and onto the MA pay lane; , for private language schools abroad a CELTA or state ESL endorsement would’ve been enough for far less time/cost. Before you commit, pull 10 target job ads and mark “MA required vs preferred,” and check salary lanes; quick baseline on requirements: https://www.bls.gov/ooh/education-training-and-library/adult-literacy-and-ged-teachers.htm. What roles are you chasing?