Regardless of how people feel about any of the personality frameworks and how well they describe human behavior, reasoning and makeup of the person -- it can be proven to be highly valuable in a day and age where people make judgements or seek to categorize and group people gauging how well they get along with those people. I am generally not a fan of labels, but, especially in our technology based field, as an INTP, I know to see other INTPs who process the world similarly to how I do. That's been difficult to calculate how useful that is to me and others. This also comes up in dating sometimes -- if you can discern that someone is a compatible type, it can be helpful.
The same poo-pooing comes up of Astrology. Now, I'm not one to go around saying that I'm a Rainbow Farting Horse Rising -- I only go as far as 'Aquarius', 'Scorpio', etc. But in that realm, there's a fantastic book called Sextrology that can give insights on partner compatibility in the bedroom and related realms. The authors, much like Meyers Briggs have interacted with an untold amount of couples. Unfortunately book has no 'edition' moniker, just a 'revised' notation so it's hard to tell how many times it's published, but it is a fascinating and great reference to get a quick read on someone and what their needs and desires may be. I've utilized it with several partners with positive and solid results.
If you're skeptical or unsure of any of these frameworks, I recommend giving them a more serious visit or consideration. Especially with something like MBTI, reading books of the time that are hidden classics that people aren't aware of (e.g. "Please Understand Me I and II") are very illuminating despite people's disdain for the MBTI as it currently sits.