If you have once found out that cooking times are to be applied for the quantities (rule of thumb in our microwave. 2 minutes at 900 W per 100 g food to be cooked) which is a great thing. Jacket potatoes and vegetables are barely cooked or otherwise with us. However, the cooking container has a small conceptual weakness: The sieve-like inner part where the food is, has in the middle of a vertical post / web, where one uses the thing and take out again. After cooking this smooth plastic bar is naturally wetted with water vapor, thereby access not good and slippery with bare hands - full of vegetables and hits me like part of your hand. Here you could simply at the top of a small ridge, etc. a gripping ring to install, already would be much easier! In general, the inner part could be a little more stable, when heated, the plastic is still very "wobbly" - which, however, the function does not stand in the way. It works just only a bit cheap.
All in all I am satisfied and would buy the Sistema-tank. Possibly I complete it soon with the larger variant, since this quantity is not enough can accommodate a 4-person food here.