I am using it for more that 3 months. it is really good. WIFI range is decent but not great. But you need to install latest software from the D-link site otherwise it wont work for the latest USB dongles that are given by your service provider.
I was searching for a router which has battery backup so that it can work even when the power cuts. Also, I wanted the functionality of connecting my USB hard drive to share my files in the network. So I chose this product.
Pros.
Works with broadbands, wired internet connection like Beams telecom, also works with USB Dongle.
Works with battery backup of more than 5hr. So you can use the router even when power goes out. It can charge via USB. This means I can use any power bank or laptop itself.
Very compact in size and Range is also good.no signal drop for up to 50 ft and more.
Repeater mode for extending wifi basically, no need of further hack.
This is NAS so you can use the wifi to access the files on drive.Supports many 3G/4G dongles.
Strong 40MHz 1x1 150Mbps connectivity .Great for high speed Internet connections.
Cons
Configuration at the start is very difficult if you are new.
No power adapter given
Takes some time to get internet connection than other brands.
No good for HD streaming or MKV support
File sharing is not much user friendly. we can share only through HTTP port.
Incoming and outgoing Ethernet port missing
Automatically reboots sometimes(very rare)
And customer supports was not that helpful for me during initial setup.
Well the cons can be ignored as at this price it offers a lot reliability; am using my power bank to charge it .Worth value for money. It can be tagged as all rounder .