Hi dizzyduck!
For what it's worth, here's my $.02
We (Me, DH, DD 12, DS 9) stayed at the Royal Plaza last Aug. on a really great rate we got from Mousesavers. I believe we paid $75 per night which included breakfast for the four of us. We used our own car and didn't use their transportation. My only observation about the busses where that alot of people were using/waiting for them. Here are our pros and cons:
Pros:
beautiful hotel
E-night access
nice pool
nice, newish room
convenient location for theme parks
Great (Free) Buffet Breakfast
really nice staff (especially at the restaurant)
very convenient to Downtown Disney
all the amenities you'd expect from a nice hotel
Cons:
lacked the Disney-feel of on-site hotels
Because of our great rate our room was as far away from the main hotel as possible. (we were in a wing room)
Again, because of the rate, our view was of I-4. I-4 was directly in front of our room. So close in fact that we didn't feel comfortable using the balcony.
We would most likely stay there again, especially with a discounted rate. There are some really nice rooms that surround the pool and have a semi-private patio area attached to them, that's what I would request if I returned. Just be aware that if things like location and view are important to you then ask when making the reservation or speak up at check in. Otherwise, I think you'd have an enjoyable time.
-Mary Rose