With decent (WPA2) security the old myth security measures are pointless, and without it, they are of dubious effectiveness.
If your router SSID is unbroadcast, clients have to "connect even when not broadcast" which makes it easier to hijack a client as the SSID they are looking for is easily detected. I'd also much rather the router "marks my channel" as I try to avoid clashing and hope other intelligent users would do likewise.
Mac filtering is also possible to evade by spoofing.
At best, those measures may deter a casual prober or a guest who has been given the key but who you no longer wish to have access