I want to buy the Facepunch | Rates Mod,

1) What is added at the not Brand-free version? Something on the footer of every page of the forum? What exactly?
2) If I buy the branded version, can I change to the brand-free later by paying only the price difference?
3) Is there the feature to show the rates of topics, not posts?
4) If 3 is possible, can they be shown in the board index, and be sorted by rate? (by clicking on the header, probably)
5) I see that there are Custom Rates, with different values, this could be made like a rate system with stars? (To give ratings of 1 to 5 stars)
6) If 5 is possible, can I show total stars average on the post or topic? (even with some coding from me, after you tell me what to look for in your code)
7) If 5 is possible, can the number of votes be shown too? (example: 4.5 stars, 10 voters)

I am very confused, I am between the Facepunch|Rates Mod and the Post Ratings Pro mod and I don't know what to choose...