I like that it can be used as both online or offline, very useful when you're in-store but need to see what's happening out there from home! If your using this with GA then make sure everything else has been set up correctly (such at having correct account info) otherwise they won't show any data unless all of those are complete which isn;t always possible during testing time - so if anyone ever uses their services just test them over email first before putting anything live ;) Make usefullness easy by making custom reports available right away without too much hassle after setup etc., helps me alot because i'm not really skilled enough myself :).