There seems to be a fair amount of skepticism about this method, but I think it’s a great system - and it can with great success be extended to everyone else in the company too - not just managers. At Dropbox, a lot of employees have (and we’re all encouraged to have) a “Working with me” document that describes your personality and work style, how you like to get and receive feedback, your career goals, your schedule and communication preferences etc.. it helps people work with each other in a more compatible, effective and empathetic way. But there’s definitely a level of vulnerability and trust that is needed to make it work, however it’s a powerful tool if you have a good culture to support it. Just my 5 cents.