After purchasing, downloading, and installing I began setting things up. I like the organization and thinking behind AEC's way of handling paid subscriptions. It makes perfect sense and I'm not afraid to try to show my client how to use AEC on the site I am building for them.
I did get stuck at one point during configuration but I logged into the support forum and found my solution within a minute.
I only need the paypal payment gateway, but the fact that there are 45 different payment processor gateways included tells me that the people behind this extension are there for their users.
AEC is rich with options for configuring to your exact needs.
I am putting it on a 1.5 site but am excited to see it's already ready for 1.6 - a solution for one of my personal sites I've been waiting years to finally launch.