Sometimes a team needs quick feedback on a new design or answers to why a feature isn't getting used as expected. In those cases, rather than writing a full report, I highlight main issues and use screen shots to illustrate problems.
The Social Media Manager feature in Merchant Center was having a high abandonment rate in the account connection process. I set up remote observation with a few merchants to watch them try to complete the process. Later that day I sent the team a brief summary of where merchants were getting confused, which could cause them to not complete the process.