Pros: Professional looking device, slick interface, performs as it should without giving me any headaches. Has far more features than I'll ever use.

Cons: I was hoping that the two network ports could be connected to two different networks, but I didn't find an option for that. It seems that you my only be able to boost reliability on one network.

Other Thoughts: It would be nice if WD could expand the list of supported UPS systems. There were about 10 on the list, which sounds like a lot until you try to shop for just those specific models. I'm sure other UPS systems would work, but I wasn't sure if there would be warranty concerns if I strayed from their suggestions.

Pros: Fast, silent, vibration free. Smoothest multi disk server I've ever seen! The speed at 130 MB/s appears to be limited by me Motherboards and Network. I was amazed that they are so smooth I not only can hear no soun except the drives spin up on start up, but I can feel no vibration when laying my hand on the unit. Setup is easy although I wish the quick start pamphlet contained a little more information. Backups are fast! My only negative is my fault. I wish I could trade it in for another WD DL4100

Cons: None so far.

Other Thoughts: I have the EX4100 and a DL4100 (24TB) and wish I had two DL4100s as with photography (Large TIFs and getting much larger) and AVI work I use a massive amount of storage.

Setting up a share for my wife's work and backup was just like creating a new folder on the computer. Logging in from her computer and setting the path to her share and making that a network drive was it. Full drive backup are 20 to 40 times faster than USB drives.

Pros: Fast, secure, convenient

Cons: I should have purchased the larger one.

Although adequet to get going the quick start manual needs to contain the basic instructions, rather than having to get them from "the Net". A beginner might have problems, but then again, how many beginners need an NAS? This is not a beginner's toy. It's a toy for the experienced that most likely already have a gigabit "wired" network. Wireless is still way too slow for transfering massive files.

Other Thoughts: I wish I had purchased the 24 TB NAS, although, That's about the size I'll probably add..

I wish the'd get wireless up to speed. My network is about 150 feet from end to end with the longest runs at 130 feet, making it susceptible to induced voltages from nearbt lightening strikes. I lost a router, switch, esentially most of one computer and 3 out of 5 NICs.