Yes.
Would your answer change?
Possibly.
I hope so. How can you answer whether something is well done without definining what "well done" means?
You feel that WDW infrastructure, as designed, is adequate as general public transportation systems go.
Hey, a successful comminication!
Try this standard on for size - does the WDW transportation system allow people to move in an efficient and effective manner?
It seems reasonably efficient. As Show points out, there are going to be times of stress, like at park closings, but the system seems to hold up reasonably well. Anyway, this stress is more the result of closing the park with an event than anything else, which isn't really an infrastructure issue. Changing this practice could alleviate a lot of frustration at closing time...
Effectiveness is another issue. In the sense that it allows people to move about, it does pretty well. Though the difficulty in getting from resort to resort is inexcuseable. I would be embarassed to tell a guest that they should call a cab rather than take Disney transportation, yet this is what you are told because its true. If nothing else, this needs to be corrected.
But really, what should the effect be? Is it only to get somebody from A to B? Or does something like the Monorail add value over a bus, assuming equal trip time? (Before I'm accuesed of being a Socialist, added value equals increased demand, which translates into increased revenue, either through increased volume or higher prices)
I think the transportation system should be a "part of the Magic", and in this area, it could be a lot better. We've been through this before, and this does not necessarily mean an expanded Monorail line, so there's no need to start pulling out construction cost figures. (and if somebody does, make sure you do a full impact analysis that at least includes the projected revenue increase, the impact of less parking space needed per guest, ...)
Maybe it is as simple as an all inclusive Monorail system with adjusted hubs, or maybe that's only a piece of it. Boats can play a part. But more of the same busses, or even "cleaner" busses, are not the best answer. (Though I think it was Scoop who suggested some kind of double-decker bus, which at least has some uniqueness to it...).
I'm not a transportation engineer, or any kind of engineer for that matter. Nor am I an Imagineer. So don't ask me to actually design a workable transportation system for WDW complete with a complete cost/benefit analysis to justify the capital expenditures. None of us here have access to that kind of info...or if anyone does they've been holding out...
But what I do know, is that the bus system as it stands does not really fulfill the original goal of being the modern, unique system that was intened for WDW. Maybe the Monorail is part of the answer, maybe its light rail, maybe its a people mover, or maybe its a fleet of llamas...but whatever it is, there's an opportunity that is being lost with the current system.