Coming from Sage 300, I love the web-based abilities. You can duplicate windows, make font larger/smaller, customize viewing templates, and access anytime! The drag and drop interface saves me navigation time daily. I also like the graph option which shows data in other ways besides excel/raw. Review collected by and hosted on G2.com.
I see lag time when trying to load large lists. For example, list of recent vendors... it takes time for all the options to load, and being web-based if you have a slower connection, it really takes longer than server based.
Like each program, it has its quarks. Reporting could always use upgrades and the dimensions you use to define reports and fields could be more grand. Review collected by and hosted on G2.com.