I like how it shows me where my traffic comes from (which source has made which referrer). The interface can sometimes feel slow at times if there are alot of data points loading up simultaneously or when switching between different views in one dashboard. This doesn't affect us too greatly because we rarely have multiple tabs open right now. If needed though this could possibly cause some lag while looking through a number of statistics. We've been able to find out exactly what our customers want before even speaking directly to them by implementing hit steps web analytics into our website.