The ability to quickly see what's working (and where there are gaps) in terms marketing activities across our entire portfolio - including digital campaigns as well as more traditional sales channels like events or trade shows etc., which helps us understand how best we can spend limited budgets within each channel area. There aren't any downsides either from my perspective so far! I've been able to identify areas that require improvement right away but also have opportunities available when looking at historical performance by client/campaign level too. This allows both myself & colleagues who work with me daily an objective view about ongoing activity levels / campaign KPIs compared against previous periods.