I like how easy it is, there are many options you can use in this software which makes everything easier when billing your customer's utilities or services! Not much but what i do not think they should change anything about their great product because we love using them since day 1!! There really isn't any thing bad at all so far as my experience goes. You won;t be disappointed if u get one try out first. ! Try doing an online demo before purchasing just make sure its something ur comfortable working around having never used such programmings system b4. !!