I've only used it a few times so far but it's doing a great job! I thought 1000 watts wasn't enough, but it seems to be more powerful than my old 1000 watt microwave. From what I've read, Ecomode won't save you much money in electricity, but it feels good to at least think you are saving a buck. Warning: it is recommended to change the charcoal filter every 6 to 12 months. These parts are pricey, so do your homework-maybe you can find them cheaper somewhere other than Samsung's parts supplier.