I've done the switch, and so glad for it.
The Bose had little or no soundstage, thumpy bass and overall clouded the music and indiced fatigue after an hour or so. The M3Ti s are sharp, provide very good soundstag and targeting and clarity is much superior. Bass is tight.

The Bose does, however, create a more suffused sound throughout the room, the Axiom are great in the sweetspot.

To use a cliche in audio circles, "Even my wife can notice the improvement".