I applied through a recruiter. The process took 2 months.

I interviewed with them over the course of 2 months and went through 5 rounds of interviews, including the final interview, just to be told that there were stronger candidates at that point. If this would have been after the first or second interview, it would be different, but to spend as much time as I did, not to mention preparing for each round, submitting answers to their case study, and so on, for them to take me all the way to the end along with several other candidates is extremely inconsiderate. Each round in an interview process should be designed to eliminate the weaker competitors and then take 1 or maybe 2 to the last round. Wasting people's time is unprofessional and rude. It makes me wonder how much of their employees' time they waste.

What do you know about the company's culture?