Ok, first read a few of these reviews, you'll learn a lot. But here's what I went through, being a Linksys fan, I reluctantly switched by the lure of AC speeds with a built in ADSL2+ modem. My old phone cable only had the inner 2 wires only, Linksys provides a phone cable with all 4 wires as they use the outer 2 as I found out in some other review. Luckily my outside phone line box was wired correctly and I quickly switched to the provided cable with the 4 lines. Hmmm, still not synching. So I one by one change almost ever setting that I wrote down from the Linksys, and still no connection. Then as a last resort, I switched from PPOE, to PPOA. Synched right up. Very unclear setup instructions. Of course their wizard didn't detect anything wrong, just says call tech support lol. So with that fixed, I eagerly installed all my AC adapters and got all the mac addresses to allow into my network and set everything up, disabling all the guest accounts, they provide 6 for what reason I don't know. But then I see I connected at 300kbps download lol. On the Linksys I was connecting anywhere from 1.3 to 1.5Mbps. All my AC adapters were screaming at 700-800Mbps and my DSL was now the bottleneck. So I check, and the Netgear settings only provide MTU settings of 1458 I think, and on the Linksys it was set to 1492 and on dslreports they recommended 1492. Not sure if this is causing my slowness, but now my whole network is screaming fast, yet very slow. I can see web pages render picture by picture it's so slow now. I gave a 3 because I think they're on the right track, but somehow someone forgot that speed was important and that it should hook up to different connections at the highest speed. I bought this to remove the external modem because like the Linksys, it was always on and stable and if the connection ever died, I can just reboot the one item. Now i'm back to a modem and this, could have just bought the nighthawk then for faster speeds. So a waste of money here. Would like to hear how others fare on their dsl connection speeds. If you have done any network setups in the past, this is just as easy. Maybe not quite as easy as a Linksys, but pretty easy once you know where things are at. The main screen with the connection and stuff are great, so like I said, they're on the right track. Oh and the 5ghz range sucks on this. Get the nighthawk if you want longer range. the 2.4ghz is fine, but you know that already.
Update:12/7/13 - I've had this thing for over a week now. During the week, I left the D6200 internet connection setting to PPPOE and it finally connected. It's still a dismal 432Kbps, compared to my Linksys which gets anywhere from over 800Kbps to 1.5Mbs connections, but the D6200 seems to connect/disconnect more quicker now. I was able to setup my security camera port forwarding without too much problems, everything seems to work. It's just slower then my Linksys. I'm in the process of switching my internet connection, it's much too slow to begin with and i'll report back on speed once that's done. Everything else about the router is fine. Some AC wireless adapters take time to synch with the Netgear though, didn't have that problem on the Linksys. Sometimes I have to force the connection and re-acquire the SSID and reconnect. But other then that, it's been stable for the last 6-7 days. If I find that speed is better over the wan port, i'll attribute the slowness to the dsl modem software. But I should be on fiber soon, so will let you know how fast it works on that setup later this month. Will update stars appropriately.
Update 12/8/2013, rechecked my NID (outside phone line box) as i was getting way too much interference. Modem was connecting at 110Kbps almost as bad as 56k modem lol. DSL provider said the outside line was fine, so i went under the house to check the phone wiring. Found some old cable still connected to the NID, but it just went nowhere under the house, but unhooking it caused most of the noise to go away and was able to finally connect at the rated speed 1.5Mbps and .382 up, finally. So as i'm getting the same speed now as the Linksys, i can't blame the Netgear for any faults now. I would say, it's not very noise tolerant, but with a clean line, it does what it promised and i upped the stars from 3 to 5 as it's working. I'm still not getting a whole lot of wireless distance at 5ghz, but it works. Still suggest Nighthawk for larger homes, my home is a small home and this barely covers it. But the menu's were straightforward and my network is setup the way i want. I'll move this netgear to my new ISP once i upgrade. Anyways, good job Netgear, their support was always there in case i needed them, but in this case, I was able to solve the problems on my own.
Update 12/15/2013, Ok had this about 2-3 weeks now, and know exactly how it works. It's connecting now at about 890kbps, not bad. It's my dsl, so no complaints there. My complaint to bring down one of the stars is the range. 5 ghz can't get 2 small rooms over and i'm using wireless AC adapters, so my 800Mbps network is about 32Mbps and lots of drops on 5ghz. I have to switch a lot of my devices back to 2.4ghz. Definitely not for large homes. And as I was curious about my old 2 inner wire phone cable, I tried it again and it connected, so no worries on type of phone cable. My NID only is using the green red phone wires, but it works for me. Next week i'm switching to ATT Uverse, so will let you know how that goes.