Both as a splash guard, as well as the part Colander worked well and could be followed easily in the dishwasher. When baking tray for pizza, as exemplified, it is just enough so for frozen pizzas tested by me. For myself, it is made then rather useless.
As microwave lid I could not test due to a missing microwave.
Conclusion:
The big advantage is the versatility, so you do not for all purposes a separate tool required and thus saves space in the closet.
