I really wanted these to worth buying; but they aren't.
A 5x 1070 rig costs almost exactly the same and will produce 1900+ sol/s @ ~850 watts with stock settings.
With optimized settings you should be able to get 1900+ sol/s @ ~550 watts.
This is with equipment that is easy to resell, and is likely to hold its value well over time.
The panda miner needs to be both; way more efficient, and have a significantly lower price.
As it is now: it's just a ripoff targeting new miners.
I don't mine nvidia cards but if you are correct
you need to spend 399 per card 5 x 400 = 2000 + 300 is 2300
so the 1070 gets 375h? if so it would be better. but I dont use them. do you have a rig of nvidia 1070 mining if so please place a screen shot showing 5 cards getting around 1800-1900 h and please show the 850 watts at the wall.