Have the egg cooker bought as a gift for my friend who was initially also very enthusiastic. After 3-4 sample test eggs had been found out the Perfect Watt / time ratio and it actually boiled eggs in the microwave. Unfortunately, after 10 egg then slowly closing cook with, the egg cooker went during the process again and again and no longer remained closed, so sometimes the microwave a Eimasaka possible.
Summary: positive: + Super idea + Design + Price
Negatives: - Does not last forever - Takes as long as an egg in water pot - Material no match for the claim
Conclusion: fun gift or souvenir, unfortunately one may not use every day;)