The garden view is my favorite fireworks view. I love it. It's the reason I book dessert parties. For the dessert party itself... you can come and go as you please. When you arrive, you're given wristbands and assigned to a table at Tomorrowland Terrace. The food and drinks are set out buffet style. There is a bathroom at TT that is for the exclusive use of guests (a nice bonus). Once you have your wristband and table, you are free to come and go as you please. Typically, I have a treat and drink with my group, then they run off and do things (ride Tomorrowland rides and/or run over to Main Street to see the parade). They then return to the dessert party to grab some additional treats/drinks which they carry over to the Plaza Garden for the fireworks. I think you'll have a great time!