Generally, the questions were practical but at the same time challenging. Know your algorithms and data structures, but don't expect someone to ask you to implement a specific algorithm. Instead, you will need them to solve a very practical, but still challenging problem.
Overall, the Dropbox interviews were the most challenging (but fun) I had experienced. Also, the interviewers and the managers were some of the smartest people I've met during all of my interviews (I also interviewed at Apple, Google, Square, Uber, Twitter, Facebook, and some other companies).
I was really impressed with the culture and the skillset of the people! I preferred Dropbox instead of the aforementioned companies because I really felt that I could grow as an engineer with these people around me! Awesome culture, super smart people, not too small, not too huge and chaotic; you have space to develop and have impact. Oh, and yes... they have awesome lunch. They do value their employees and offer a lot of benefits. Also, I am super satisfied with my offer! (It exceeded my expectations).
NDA.
The following metrics were computed from 1 interview experience for the Dropbox Senior Front End Developer role in San Francisco, California.
Dropbox's interview process for their Senior Front End Developer roles in San Francisco, California is incredibly easy as the vast majority of engineers get an offer after going through it.
Candidates reported having very good feelings for Dropbox's Senior Front End Developer interview process in San Francisco, California.