I like that it is easy to use, as well has being very intuitive with its interface; It also offers many different ways of visualizing your results so you can see what works best in relation to each other or even just how much traffic certain keywords are bringing into particular pages/pages within an individual site etc.; You will need some technical know-how if this isn't something familiar already but once used there's nothing stopping anyone from creating new dashboards using various tools available through their platform (which they have great tutorials!).
The only downside i've found thus far - which may be my own lackadaisical approach towards learning more about website analytics! But honestly though after having created one dashboard myself now everything else seems quite simple :) Really love all aspects except perhaps cost? Which could definitely justify paying £20 per month rather than free!! However we're not actually charging our clients anything at present therefore no problem here ;).