Trying to understand limitations of Web Edition tools

Hello

My robotics club is intending using De0-Nano boards with Web Edition software for some experimentation/

From what I have read so far, it would seem that the NIOS core that comes with the Web Edition has some limitations, but it is not clear what they are.

1. Functionality: Are all the NIOS build options supported? eg. building with/without MMU.

2. I see it is time limited. How long?

3. I see that there is a limitation that you can't distribute a product without a NIOS IP license. That does not limit us since we are not distributing products.

4. Are there limitations such as only being able to operate the CPU while teathered to a host?

Any other sneaky limitations I should be aware of?

Thanks

Charles