Excellent piece of mind for the money. Sharp picture quality. Excellent night vision. Easy to install. I couldn't be happier.

really good quality cameras but just wish the app would work to view it on my phone.

Fairly user friendly. Price and quality are great compared to other options. Comes with everything you need to get started. You will need a HDD if you want to record with the DVR, but this allows you to pick your own.

Good camera system. Comes with everything you need to install and the instructions are very easy to follow. Make sure to buy the hard drive because you will not be able to rewind or have evidence if something does happen. You also need a monitor to view the footage unless you are relying on the phone app. Still haven't tried the app yet but its nice to know its there. The DVR recorder does make some noise but it is not loud enough to keep us awake at night.

After having gone through 3 different NVR/DVR systems, this Zosi DVR with 4 Cams was the easiest to setup and get running. This one Model doesn't include the HDD, so you must have one of your own to install...anything between 1 and 4 TB will do nicely, I installed a Seagate with 1.5 TB on mine. The instructions are the best & most concise I've seen coming from The Far East, and the Zosi View app for Smartphones is super easy to setup as well. The cameras' housing are metal and quite sturdy with adjustable hoods and cables about 2 feet long, the DVR is very elegant looking and robust too. Also worth mentioning is the Zosi Client app for PC's & Macs that comes in the CD, all you do is install and use the same parameters as Zosi View to login. Very important to observe, is when you turn on the DVR for the first time...when you log in, remember to leave the Password BLANK. You'll have other chances to change it and the User Name to your convenience.

Update 09/08/2017 9:45 PM
2 days ago the DVR started Rebooting by itself, and at the same time Rebooting my PC as well every 12 hours or so. Since I had it connected to my Network, I figured that some nosy Orientals were trying to do some snooping in my Computer but couldn't get past my Login password prompt.

I've also been having issues with ZosiView on my smartphone, it'll download just fine and install, thus allowing me to see my cameras' video feed, but only as long as I was in the app, and then when I tried going back in all my login information was gone and it wouldn't let me log back in again. The only way I could view my cameras was by uninstalling the app and then reinstalling it again over and over again. It turns out that the antivirus program (Lookout) in my smartphone was detecting fishy traffic coming from (where else?) China every time I installed the app and would lock me out of the site to stop the suspicious snooping network traffic.

My only recourse for a remedy was to disconnect the DVR from my Network yesterday, and since then neither the DVR nor my PC have rebooted again. Of course that means that I won't be able to view my cameras on my smartphone anymore...A small price to pay for regaining my Privacy. Otherwise the system functions flawlessly and affords me the convenience of viewing the cameras' feed on my flatscreen TV.