I'm truly disappointed. From seeing all of the recommendations on here for Andy I thought I wouldn't have any issues but unfortunately I was wrong. I had bought one IPC-HDW5231R-ZE to test the water so to speak to see if I had any issues. I specifically asked for IPC-HDW5231R-ZE as I knew the IPC-HDW5231R-Z was being discontinued and I didn't want a non-uniform setup of cameras. One week later and I receive the camera with no issues. So after testing the water and not having and problems I decided to finish the rest of my order - 5 more IPC-HDW5231R-ZE. One week later and I receive the wrong cameras. 5 IPC-HDW5231R-Z instead of IPC-HDW5231R-ZE. As I said earlier I didn't want a non-uniform set of cameras so I raised it with Andy to either replace the 5 Z with ZE or replace the 1 ZE with Z. From my emails to him he's 'so sorry for the troubles' but so far hasn't made any attempt to resolve the issue.