I like that it is easy enough so new users can get an idea as well how things work, but also provides good training material if needed! It would be nice though just have more templates available or maybe some addons could help with this? The best part about SATORI are their customer service staff who always respond very quickly whenever there's any issue/question asked in our forums (which we've never had).
We use sigmanage at my current job which has been great however sometimes you find yourself wanting something extra when doing bulk emails etc., especially since they're not cheap compared say Gmail apps where everything seems pretty much similar apart from colour schemes & font used within them - plus its free!!