Range has a lot to do with obstructions. Generally it is good although it has a hard time making it through a brick wall about 20 ft away. It does an adequate job in a 7000 Sq ft house although likely there are better ones now.
No. At least not for me. Coverage is adequate at best for single level. I ended getting the Asus RT66. Great coverage on at least 2 level home even great coverage outside. Set-up easy enough. I flashed it with a Merlin version of firmware and it works great! Good luck!
Yes, absolutely. The router defaults with the web administration open at http://192.168.1.1 with the user name of admin and password of admin. From there you'll get a few prompts suggesting to use the Cisco Connect interface and software and you need to check a box to decline. I don't know how well that interface will work with your adaptive software. However, once you are through that, you'll be taken to the classic Linksys web administration screens that we all have come to know and love over the years.
The router works fine. However, I have metal studs in my home and therefore the full power did not reach to the far end of the house. I bought an extender and now have full power everywhere. Easy setup. Just make sure you set up extender plugged in next to your computer and then move it to the location to want....they left out that set.
You may not even need an extender.
I am not expert in this field, I know only a little. We used this router to connect Windows 7, XP HOME EDITION AND A KINDLE. OUR INP is Clearwire (Clear) our cost remain the same and we can add another computer, etc without charge. I think your INP would determined the cost and not the router. Betty