Since installing Bob on our TV, my kids have learned to respecttheir allotted TV/video time. Previously, "2 hours" would turn into much longer on the weekends. Now, each one has their own time slot.Very easy to use, very easy to program, can have multiple users, doesn't just "let you in" if the power is cut (unplugged or power outage) -- you have to use the master account if the power is out.Very straightforward to use. Even my husband, the TV addict, does not complain about it being in place. Very nice to be able to control usage.