Yes, this checkpoint replaces the bag check at MK. If you walk from CR/BLT, you have to take the one sidewalk, of course. You cross over the street (World Drive) at the light, and just past that point there is the security checkpoint. It includes a bag check and a metal detector. Once you clear that checkpoint, you have another 4-5 minute walk before you get to the main entrance where you go straight to the turnstiles. The only bag check and metal detector at the main entrance to MK are for those who bus there since the TTC handles that task for the ferries and monorails departing there; the monorail resorts have bag checks/metal detectors before you board the monorail; and passengers on the boats arriving to MK from places like CR, FW, and WL are checked when they disembark. Since there are so many places that now do bag checks and run metal detectors, then the backup at MK itself was reduced when we were there, and that was the week of the 4th of July. As I mentioned, we did see some congestion at the TTC (though they have far more bag check areas and metal detectors than anywhere else, it appeared), and certainly there was a little longer wait to get through that process if you rode a bus to MK. However, the lines to get through the turnstiles were rarely more than 6-8 people deep, and since we're AP holders, we breezed right in through a separate turnstile. Hope this helps!