The fact it's easy enough anyone can use without having programming or IT experience! This makes them more accessible than many competitors software packages out there as well - which helps us reach our target audience better (which we need). There are several things I like about this system but nothing stands apart from anything else so far; maybe because they're pretty much perfect already? However if someone needs something done quickly then sure go ahead and give their support team at ERS some credit ;) It isn't too expensive either compared to others similar systems available online now such as Sage X3 etc., although not cheap when looking into longer contracts and annual subscriptions/licenses. Easy deployment across teams & users within my organisation using existing AD credentials, no custom development required unless needed after initial setup.