I BOUGHT THE ECP3420 AS 1 OF MY EC155 NEEDS REPAIR. I TRIED IT A HALF DOZEN TIMES. MY EC155 MAKE A DECENT FROTH AND GREAT ESPRESSO, I CHILL THE MILK AND GET A SUPERIOR FOAM. THE ECP 3420 WHILE ITS BEST FEATURE IS LESS CLEANING, IT MAKE ESPRESSO THAT TASTES LIKE COFFEE [MILD] SO I AM GOING T O RETURN THIS MACHINE.