I'd tried two different neck massagers before this one. One broke after three weeks. The other felt like someone tapping me lightly on the shoulders — completely pointless.
What's different about the Aivo is the heat. Not the barely-warm glow you get on cheap ones. Actual warmth that you feel getting into the muscle. That's what makes the tension let go rather than just feel briefly touched.
It's the reason I kept going back to it. Not the massage. The heat.