The best thing about this software was that it's very user friendly with simple navigation to access all features of our billings system in one place without any hassle or confusion at anytime! I do not have anything negative to say as far as its functionality goes but would like more options when creating reports from different sources such as customer information etc., which can be done using other softwares however we dont use them too much so i cant comment on those aspects yet! We are able solve most issues regarding bills by just logging into cusi via internet browser instead going through emails.