Unneccessary and bloated. I Changed the SSID on my network so I had to reconfigure the already working repeater. You can either: - reset repeater to factory settings, log into it and set it up OR - download the app, create a pointless TP Link ID, try to find the repeater and fail, reset the repeater to factory settings and then use the app to do what you can do in the repeater interface itself (but more limited) No thanks. STOP making everything a profile/cloud solution.