We have a local place that makes Reuben's to die for (considering the calories of their very buttered/toasted bread, that's a correct statment

), so I looked at Disney for one too. Saw the Plaza menu had one (haven't tried it...read one person's review last Fall that indicated it was average), and we did try the one at Sci-Fi.
I thought it was pretty poor...bad, actually. Would not order it again, but maybe I'm spoiled. The bread was almost cruchy-dry and thick (texas-toast thick...marbled), the meat was edible, but if there was any kraut on it, I couldn't taste it (too dark in there to study it

). Needed lots of thousand-island and water to get it down.
Maybe they had an off-day with reubens.
(My dad enjoyed his cheeseburger (rare!), and the desserts were good.)