We have been to Disney and stayed off property. We arrived very early and did fine. We stayed 9 days.
This time we are only there for 3.5 days prior to a trip to the Caribbean. Every moment counts this time. Trying to decide which method (off site with our own car) or staying on property will get us to the park quicker on day of arrival and other days as well. I know much has been said about the bus system in busy times.
Also, if we stay off property I don't wont to waste time at the store etc. The 3 bedroom condo is nice though as we have 3 children ages 10, 13 and 16. We have to get two rooms at Disney as the suites aren't comfortable for the older kids on pull out couches etc.
Also, if we stay on property which one (value or moderate) will get us to the parks the quickest?