Customer service is great and extremely responsive. My advice is to speak to them and ask how they can help your business.
We have been using Chargeover for over 2 years now and are very satisfied. The software is easy to use and the customer service is amazing.
The reasons why they are great: very responsive, tons of features and very affordable. We run a small business but use a lot of processors to make life easy for our clients.
Can only send an email when an invoice has been generated/payment failed. No options for the invoice is overdue by x number of days, etc.
Our main issues with the system is that it will not automatically deduct one time invoices charges and we do not have the option of payments being due on the first of every month.
Really, our only complaint comes from the fact that we are a UX/UI design agency.