Hi, dunno if its better than wasted spark but it seems a bit cheaper solution and better than the standard distributor certainly.

Advantages (picked up from the site)

• simple installation without mechanical adaptations
• smoother engine torque curve.
• no maintenance – ever again!
• variable dwell angle to prevent low speed overheating of ignition coil and make a better spark at all speeds
• better starting
• better emissions
• better fuel consumption
• no burning out of the ignition coil (after stopping the engine power is cut to the coil after 1 second!)
• built in LED for simple static ignition timing
• real value for money

Heard nothing bad from customers yet. It seems you can use the genuine coil cause the 123ignition seems strong enough.