We do use Guest mode however I am reading in a lot of peer groups that the Roku and guest mode has been having some bugs, due to a software update on Rokus end. The TV will turn off and on and log them out and make them log in again. I haven't heard anythhing from my guests as of yet so hopefully it has been resolved.
My issue is despite it being in guest mode they can download the Spectrum app and make purchases. This happens several times per year and there's nothing I can do about it according to Spectrum and Roku because we just have streaming and no cable box which can be locked for purchases, I just have to call and cancel what they ordered. 😑
Karen