I like that it is integrated into our ERP system so we don't have to manually enter transactions or inventory items every time an order comes through; however this does mean you need access/knowledge about how to use these tools within SAP which isn't always something businesses can afford (or know where too look).
It's not as user friendly for small shops who are used to entering everything themselves from scratch each month - but once they get their head around using them properly then its great! We've been able to keep track easily without having multiple spreadsheets etc running at any given point meaning less admin work overall = happy customer :).