I know this ranks lowers than making the software work, so not expecting immediate action.
There are several “competitors” on the market that have “work flow” type interface (NCH Invoice, QuickBooks, etc). I think this type of interface (or option of) would make this a much easier introduction for the (very) small business user.
For the hard core book-keepers that make up most of this forum this will seem a bit banal. However, I know a lot of small business (1 - 3 man consultancies) that muddle along with spreadsheets and the like because book keeping becomes a daunting task, and they don’t want to be a full time book keeper.