Guess I need to write my first ever comment now as well haha
Can second this! Recently got a DXP6800 Plus and the hardware is great. Though I didn’t really bother with the UGREEN OS and installed TrueNAS on it fresh out of the box.
In comparison to my old 6-bay QNAP the only downside is IMO that it’s a fair bit bulkier. But it still fits nicely under a desk.
The hardware is good enough to to run TrueNAS with RAID yeah 😄 I have mine using raidz2 and it doesn’t break a sweat. Though I forgot to mention that I also upgraded the RAM to 32GB. The 8GB it comes with are on the lower end of TrueNASs recommendations.