The ease of use, being able to send an invoice from your accounting software via email or upload it directly into my website has been great! I have also used fast pad's customer support quite often - they're very quick & helpfull when needing assistance with anything that isn't working perfectly :) As mentioned above there are some features available which arenβt as advertised such sending invoices without any charges but more importantly adding customers who haven't signed up yet (no creditβ¦