@d-healey I like the design and how it's build. It makes a lot of things better like the license activations or even has a host management which I use to manage my client-host logic. Also, the REST API is very secure and provides a login / token feature which others don't have. Same as trial! very comprehensive and just works, I have no complaints in a 500 ish user sample.
To round it up, they provide such a good support. They are always helping me if I need to modify something or if I just have a question.
Also I've sent some suggestions and some cool features are coming up, like for example license distribution/redeem system through plugin sellers without affecting the order system.
more info here https://agency.enwikuna.de/store/enwikuna-license-manager-pro/
Cheers