How accurate is Glassdoor for assessing if a company is a good place
to work? Should I let the reviews influence my decision?
Read the Glassdoor reviews for companies where you have worked in the past.
If you are like me, you'll find reviews all over the place. And if you are like me, you'll wonder if they are actually reviewing the company you know. As far as I can tell, they just reflect individual opinions and cannot in any way be considered an "accurate" reflection on how you'll perceive the company.
Reviews are individual and self-selected. They aren't a random survey, nor are they a complete picture. Often people with a bad experience are more motivated to complain publicly than people who had a good experience.
Additionally, a company where a few folks complain about "Bad work/life balance" (whatever that means to them) or "non supporting management" doesn't mean it won't be an excellent place for you specifically.
I never rely on Glassdoor for my assessment of a company. My experience tells me that it wouldn't make any sense for me. Instead, I read everything I can about the company (including anything on Glassdoor) before the interviews, and remember them during the interview process. If something particularly gets my attention, I look for signs during the discussions, or ask specifically.
(Note: Search for "Glassdoor" here using the Search Q&A tool. You'll see a handful of other questions involving Glassdoor, if the reviews are reliable, and if individuals should leave a review of their own or not. It might help you decide if you should rely on such reviews.)