Yes. Good. Depends on the item, call and ask them. It's better or it wouldn't be EXC; how much better? Call and ask them.

Read through these threads where this has been hashed out before:
http://www.apug.org/forums/forum44/4...s-grading.html
http://www.apug.org/forums/forum172/...-customer.html
http://www.apug.org/forums/forum52/4...ience-keh.html

Basically, they are very conservatice in their ratings and if you don't like the item you have a no-risk (other than shipping costs) option to return it.