I will start by grading its features, in order to convey the best possible image for anyone interested.
1. As a container, simply for carrying your food, it is excellent! It has good compartments and the separation helps you maintain portion control (in terms of plate equivalence, in carbohydrates, proteins, and salad).
2. For heating, it is good, not perfect, but okay. The reason I say this is because if you are going to heat both containers simultaneously. What goes on top heats up quite slowly.
3. For cooking, it is very good. I have boiled eggs, pasta, rice, and even made sunny-side-up eggs in the container with the separator, and it has not disappointed me. It takes a little longer, but in the rush to get to work and not having done anything to have it ready, it is a lifesaver!

Note: Do not fill it with too much water. The level should be up to the min mark.

Therefore, 4/5 due to the heating issue I mentioned earlier and because you need a separate bag for the container since you have to carry the plug and the water bottle it has, and there is no space for them to be integrated.