The infrastructure of this system is honestly very impressive. From a performance and security perspective, it is solid and clearly built by developers who know what they are doing. I would definitely recommend it on a technical level.
However, the weak point is the admin panel and user experience. The UI feels outdated, language pack integration is incomplete, and some basic configuration workflows (such as translations and plugin setups) require unnecessary manual work.
In short: the hard part — backend, performance, reliability — has been done very well, but the simpler parts like interface design and usability are falling behind.
With a serious UI/UX update and better localization support, this product could easily become top-tier.