Apathy

I bought one at costco about a year ago and have had no issues, seems likr a very solid router. We have comcast 75mbps. My roomate, my girlfiendn and I can all stream hd at the sametime with no buffering. I have a condo and I can pick it up outside on both ends and even on the sidewalk out front.

See that's one problem with mine is when I'm outside grilling, I get a very weak signal. When I'm online gaming and my son is streaming movies wirelessly I can really see a difference with lag

Some of that speed is going to depend on your ISP, but a Linksys EA3500 is what? Four or five years old? In Internet terms, that's older than the hills.

Any normal household these days has 12-20 wireless devices connected at any given time, from phones to TVs to tablets to cars to appliances to... whatever. You need something that can handle up to 20 concurrent connections with reliable download speed, and your Nighthawk 1900 is going to cover that. But be ready to replace it...