It's super easy to setup and get started. And it's also very affordable for the all the different features they offer. I don't use a lot of them, but it'll be cool when they are available for me in the future

Invoice Ninja has everything a small business owner needs when it comes to invoicing, making payments, tracking work time, and even project management. At its heart it’s an invoicing system but it does so much more than that as well. I use it to send write and send all my invoices. The system is able to accept all forms of payment via multiple payment gateways, which makes things very easy. There’s also a lot of great automation tools which speed up things considerably. Together with the time tracking and Kanban board tools, I can’t really imagine using any other system, other than Invoice Ninja.

Invoice Ninja makes it very easy to design invoices like I want them. It also provides plenty of options to customize the billing workflow. I like that I can set up recurring invoices, and my clients can set them to be paid automatically. Being able to set different payment gateways is helpful so I can support Credit Card, ACH, and Check. It's also nice that I can set a discount when paying by ACH, since it has lower fees.