I think VII is going to be great. Based on the Prequels, there is room for improvement. I'm sure it will be very good.
To be honest? I think it's going to be fantastic. As much as people want to hate on Disney cause...they're Disney? The fact is they have amazing writer's, and all of their recent films have been extraordinarily good. Not to mention they got one of the best writers of Episode 5 on the team; better yet Lucas has no creative control what so ever. He's on as an 'adviser' but he wont be able to mess anything up.
There's just about no way this could go south.