The D-Link AC2600 router appears to be a good router for the price. Out of the box, the first thing that caught my eye was the sleek profile (the overall footprint of the unit is only 10"x7", so it's not huge, but then again, it's not small), although once the antennas are connected, the profile is kind of shot. The second thing that caught my eye was the USB 3.0 port, which for some reason is on the front of the unit. I'm not sure why this port wasn't placed on the back along side the USB 2.0 port, but if you have anything connected to this front port, it doesn't leave you with a very clean look. The activity lights are located on the top of the unit, and although they are rather basic compared to some of the other routers I've seen, they tell you what you need to know. Overall, other than than that one USB port, the look of the unit is nice.
I had the router set up in mere minutes and had several devices connected just as quickly. The user interface to the router is not the best I've seen, but it's definitely not the worst; all of the settings are laid out in a fairly intuitive manner so it's fairly easy to find what you're looking for even if you're not quite sure what it's called. The router of course operates on both 2.4GHz and 5GHz bands, but by default, 'smart connect' is enabled which combines the 2.4Ghz and 5Ghz bands into one channel; your devices simply connect to the only visible channel and are automatically placed into the proper band. On previous routers that combined both bands, I've occasionally experienced some trouble with devices that were connected to the 5GHz band having their transmission speed reduced dramatically due to signal strength. In those cases, the only way to resolve the problem was to split the 2 bands into two distinct visible channels and connect directly to the 5GHz. This did not happen with the D-Link router, probably because the signal strength is by far the strongest I've seen from almost any router I've used (the transmission power can be also adjusted via the user interface, which is a cool feature). Streaming video content to several devices at once was flawless. The overall bandwidth was of course reduced, but unless you're going to be streaming HD video to 4+ devices, I think this router should work just fine. I also tried some gaming while streaming to two other devices and saw no visible effects on the game, but I did use the interface to prioritize the gaming machine. Along with device prioritization, this router supports quite a few nice features including guest networks, website filtering, and even remote sharing via FTP, just to name a few.
Overall, I think this router is quite capable, especially for the price. I think this router should be fine for anyone needing to stream to several devices. Anything above 4 simultaneous devices might be pushing it, but again, for the price, I think this is nice router.