I disagree completely. Their USP is clear - they are an accounts receivable team for getting paid on time. Freshbooks, Hiveage and most of the others just let you send invoices online - they don't interact with your clients. These guys handle all of the A/R by making phone calls, sending reminders, followups, cashing checks etc.

Very similar to http://zencash.com who spell it out a bit better, but definitely solving a real problem that a lot of companies face.