In terms of features, SimpleStart is a good, basic accounting system. All the key areas - invoicing, estimating and bank reconciliation - are well covered. You can create invoices speedily through a hyperlink on the homepage and can now email both estimates and invoices as PDF attachments. And, aside from the standard entries in SimpleStart's slimmed down list of 14 reports, which now includes a trial balance and a better audit trail, there are useful gems, including a "Total Sales by customer" report that shows an overview of active customers and their balances. Handily, you can drill down on its figures to the invoices.
It's also good to see the use of plain English in reports: rather than the traditional aged debtor analysis, SimpleStart's equivalent is the clearer "Invoices that haven't been paid". Unfortunately, though, the reports are hamstrung. While you can now extensively customise the layout of reports and forms, I couldn't find a way to export them to Word and Excel for further analysis.
Overall a nice basic system for basic book keeping...if this is you, then its spot on