Highly recommended. We use it everywhere

Anyone familiar with storage solutions will feel at home. There are a few areas that could use better documentation on the "why" someone might use a feature, but the "how" you use a feature is very well outlined.

We have many TrueNAS units deployed and they've served us well everywhere. Our most common use case is using it as storage backing for virtual machines. We have Proxmox talking to it, as well as having it acting as the hypervisor. We've never lost data with it, even when faced with multiple disk failures. We've also always found the performance to be robust and able to handle the needs of our clients. Our clients range from libraries, to medium sized enterprises and we've always been able to make it work, and work reliably.