Seeing as you can get a full rig with 8 x RX580 for around $2000 these days in your local computer shop, with significantly better warranty and a resell value on the video cards, that would suggest that the price on the Panda B3 needs to come down in price to what it used to be when they were launched.

Other than that, the ones I got a couple of months back have been running non-stop with no problems since I started them.

Only annoying thing for me was that they came with only Chinese language configured, meaning you have to figure out which buttons to push to install English in addition.

Panda should probably also upgrade from RX470 to RX570/80 in their next batch, since I don't think the RX470 chip is cheaper for them to buy these days compared to RX570/80.