I agree with you Guido, it shouldnt be open to comments from others. The only written content from the buyer should be a short summary of the transaction (service or parts/saws and how well it went), maybe 250 characters. Then a comment area from the seller, same idea on size. The idea of having a 1-5 start ratting for individual categories like Ebay had would be nice but if its complicated to implement then just one 1-5 start rating for overall satisfaction would be nice so that you can get a quick idea overall without reading all the comments...