I like all of it! It's easy to use for both my staff as well as myself when creating an invoice or sending out emails with reminders about upcoming bills due dates etc.. The only thing i dislike at this point in our business relationship was not having access after hours (or weekends) via mobile app/phone number but we have since resolved those issues through support team so no worries there now!! We're saving money using ALLINVOICE because every month instead of writing up multiple checks each pay period - one check has been written which saves us thousands per year plus also reduces stress levels from dealing wtih cash flow problems during slow times between paying employees' salaries & other expenses such as utilities costs monthly- quarterly taxes payments ect...