Yes use the room key. Its personalized. Best thing ever. We went to magic mornings this past Saturday and Sunday and it was awesome. Save star tours and space MT for the end of the hour right before the crowd is released and u will walk on to almost everything!
I too was swayed by mw to try some new eateries. Here's my opinion ; beingnets are waaay better in jazz kitchen express, Matterhorn is overrated, just too busy and covered in coolwhip, however the plaza inn is pretty awesome. The only prob is your options are a chicken leg, or 3/4 of a chicken! I hope to try the fried green tomatoes next time. :)