Summary: Got the AC1750 in March and it started out working very well. Only 4 weeks in and it started to have problems with speed. I tested my modem and I was getting 15 to 20 Mbps at that point. Plug in the Linksys and it would drop to 0.5 Mbps.
Summary: This router is 'certified refurbished' which would indicate that it should work, but perhaps be not quite like new. The router I received did not work at all which would indicate that the certification and refurbishment perhaps did not happen correctly.
Summary: It fried. Writing this on a desktop that is connected directly to the modem. Ran software check - it doesn't even do that. Impossible to tell why it fried. It lasted only a few months. Never again. Phone support did not exist. Published numbers have been changed. Stay from Linksys.
Summary: I did not have so much luck with the refurbished product, linksys tried to get it up and going with no luck either, offered to sale me a brand new ea6500 for 80 dollars. I passed just on the fact that if a 10 month old router has problems alrwady then, why bother.
Summary: Great for automobiles without Bluetooth. The mic is perfect. I give it an A+ except there seems to be a lot of crackling when transmitting to the FM radio. Kind of annoying, but a great unit overall.
Summary: This router is great. Bought it to take advantage of the new wireless ac standard. The unit I received was the v2 revision making it the same as the EA6700. My first step was to install dd-wrt, which was difficult given most of the instructions are for the first hardware revision.
Summary: So far so good. The router has been working great from a central closet so it pretty powerful & the 5 ghz bandwidth really delivers strong signal. The app is also very useful & convenient. I was using a linksys EA3500 certified refurb router & the EA6500 is already doing much better.