1) Enterprise analytics faces challenges including technical setup issues, differing human behaviors, user access controls, accounting for multiple sites, and ensuring data quality. 2) Specific issues mentioned include mixed quality data sent to analytics, difficulty comparing sites, test and production data mixing, inconsistent campaign setup, and varying user access needs across business units. 3) Suggested remedies include using a tag management system, refining incoming data, standardized campaign tracking, implementing rollups and APIs, anonymizing users, and setting analytics alerts and audits to monitor data quality.