I might have caught my first swarm using the Swarm Bandit by Pigeon Mountain Bee products.
There was a definite catch to it.
Once I realized that the trap was full of bees and they stayed there for several hours (which seemed to indicate the queen was in the house) I slowly transferred the bees to the same sized hive DIRECTLY in front of the old hive.
The bees seemed to naturally migrate to the new hive and over the period of 2 days they have slowly entered the new hive.