We've done the F! dinner package 3 times. Twice, we've eaten at H&V, and once at MM. My family enjoyed H&V more than MM, but maybe that's just us. We like to try a variety of foods, so we don't mind buffets. At MM, both my DH and DS were excited about trying the chicken parm., but neither of them liked it very much. I had the mushroom ravioli; it was good, but I still liked the variety of things I got to try at H&V better.
The first and third time we went, we were directed to a separate entrance. The second time, they sent us up the main entrance, but about halfway up, we were separated from the 'regular' patrons by a rope. Package people went to the right of the rope, regular people to the left. I don't know why it was different that day (maybe it was a slow night and they didn't want to open the separate entrance???). When it's time to exit, everyone just goes to whichever exit is closer to them, so there's no separation b/t the two.
The advice I would give regarding the view from the package seats... just don't sit near the front. We decided to try that this past time, and we hated it. If you can sit in the top half of the reserved area, as close to the middle as you can get, you'll have a much better view.