One thing you didn't mention (I know you were focusing only on basic information) but I think is pretty important is that you can decide both how the ICO funds are paid out and how the new Tokens created are distributed.

For the first, you can choose to have all of the STEEM invested go to the creator or divide it up among founders or other accounts any way you choose.

For the second, I think it's important to understand that if 1 STEEM invested creates 10 Tokens, not all 10 Tokens necessarily have to go to the account that invested the STEEM. For example 8 Tokens could go to the investor, 1 Token could go to the ICO creator, and maybe 1 Token could go to some special prize fund that will be used for the ICO creator to run contests and promotions for their token later on.

I understand that these are not basic features but I think they open up a lot of interesting ideas so I think they are important for any future ICO creator to consider.