@pmdj me neither, but I considered them on several occasions as they proudly advertise the use of #i210 or even #i225 NICs and if I had to rebuilt my current setup I'd likely chose one of those if not a 1U version...
There are some even with 10GBit/s NICs [usually an intel #X540 2-port SFP+ card] cuz that would make sense.
Also the #i350-T4 I use has been scalped to 3x it's price when I built that system.
https://www.youtube.com/watch?v=JgBaRzmOqjQ