I was going to pick up one of these but I was dissuaded by the amazon reviews, the two problems they had were:
1. PCI slots too close together, meaning possible shorts(easy fix is just some cardboard.
2. Loose pieces.
Has anybody had these issues?
The PCI-E slots are definetly too close together on the board. I was having GPU's drop caused by the risers shorting. I filed down the back of riser PCI-E 1x connectors and put 2 pieces of electrical tape over the soldering. That has fixed the shorting problem. Otherwise the board has been very stable and is easy to setup. Currently running 8 AMD cards with the blockchain drivers + 2 Nvidia cards with the latest driver on Windows 10.
Now that the Asus B250 Mining Expert board has come out, IMO you are better off going with that board for $30 more instead. A total of 19 PCI-E slots and integrated ATX 24-pin connectors for up to 3 PSU's is a nice feature and the board has a much better layout.
https://www.newegg.com/Product/Product.aspx?Item=N82E16813119028