Peak concurrency, delivery bandwidth and tail latency shape the experience.
Lifetime value per player against the cost of acquiring one.
Average view duration and how many finish.
Ad revenue per thousand impressions and how many requests are filled.
What each hour watched costs in content spend.
Track the share of ad inventory sold and the value left unsold.
Compare content cost per subscriber with revenue per subscriber.
Track D1, D7 and D30 retention for install cohorts.