Really good man, saved me so much time. No more digging through scattered resources trying to figure out what actually matters. Would have loved a couple more case studies but what is here got me through my round.

I come from a small company so I never touched real scale before. This showed me how the bigger places think about backfills and late data and all that. Wanted a bit more on cost stuff but no real complaints.

Been doing this a while and still learned stuff, mostly the data contracts and temporal bits. Was just brushing up before a big interview and this did the job.

My recruiter literally told me the loop would have a design round and a modelling round back to back. So I grabbed the duo. Felt like I prepped for the exact interview structure instead of guessing. That alignment was the whole value for me.