I use this with many newer devices, though no smart TVs. I have iPads, android tablets, phones, chromecasts, FireTV and sticks. The only issue I have is that occasionally my chromecasts disappear from my network and then reappear shortly after, this happened much more frequently with my old router however. Like any network I have had the occasional slow down and drop out but most are related to my modem I believe since it usually happens to devices that are wired to it more frequently than the wireless ones.