Function: Is the information shown in the instant answer better than using a regular organic link below?
Relevancy: Does the instant answer return relevant data from the source?
Triggering: Can you think of other ways of triggering the instant answer? (e.g. "calling codes for panama", "calling codes in panama", "panama calling codes")
Adult: Is the instant answer effectively not showing adult words or content by default (safe-search on)? There shouldn't be any adult imagery or profanity in instant answers.