I haven't used LaTeX in ages to be honest. I guess I could give it a shot and compare pros/cons between them. If I'm not wrong also the book "The Go Programming Language" by Kernighan and Donovan has also been typeset with groff (I think there's actually an email sent by someone to Kernighan mentioning how beautifully the book was typeset and he explains why he didn't choose LaTeX and leaned towards groff). The main reason why I used it was because is a tool that has been in unix systems for ages and was simply curious about it and re-writting my CV with it was an excuse to give it a shot.