Professor Messer is a good start.
Professor Messer will get you a pass for the exam if you pay attention / take notes. I also used Darril Gibson's book and that really helped. I think I ended up only getting about 3 questions wrong out of 90 and that was probably due to Darril's book.
The Security+ on a resume is a good indication that a job candidate has enough interest in InfoSec to have bothered getting the certification. It does makes your resume standout from other resumes that do not have any security certification. That might be an important detail to some hiring managers.Thanks!