I had a WRT1900AC that got fried from a lighting strike so I had to replace it. My family was thrilled because they were sick of the regular downtime and reboots the WRT1900AC required. When I say regular I mean maybe monthly at the most, but it always seemed like it was during "prime" time. The AC9500 cost way more, but I have had 100% uptime for the last 3 months I have owned it. I would say the range is better, but the WRT1900AC was no slouch. Linksys does have a great iOS app and I would say it was a little more user friendly and a nicer UI overall than other products I've tried.