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Full user review
"Deceitful marketing, decent product"
It pretty much just works, is relatively simple.
Not "Free" until you try to uninstall the Pro version, after it magically expires. No indication of what the reduced functionality is, or why you should pay $99 for the full version, I'd happily pay, if it was completely clear what I was paying for.
It works, and if you don't have huge invoicing needs I'd say go for it. Otherwise look at Quickbooks online or something more legitimate and powerful.