1. the microwave can not adjust per Watt but only about 5 steps called Low, M. Low, Med, High & M. High - it takes a while until you know for themselves what wattage have the aforementioned stages.
2. The microwave is not exactly quiet during operation but rather noisy.
Conclusion: For this price you get a really good device and with two disturbing things you can definitely live well, I can recommend the microwave for that price anyway!.