I got Linksys WRT1900ACS at home. The router works very well with original firmware but as you expect is very limited in terms of features compared to opernwrt(and others open source alternatives). I was running openwrt for almost 6 months. Even that it said even on the box it works with openwrt the wifi support is complete shit! The wifi driver is performing so bad it will turn your life in to living hell. Expect disconnects and low bandwidth when using wifi (for both 5G and 2.4G). Recently I restored the original firmware and the wifi is performing great but is just a wifi router now. Nothing more. I lost all the additional features that motivated me to buy it. I want to throw it out the window!! Imo stay away from linksys if you want open source firmware and advanced features.