Not preferable in MK. Better in Epcot and AK, and at MGM they're good if the construction is done near the entrance in those lots. Otherwise do normal parking there too. At MK you park behind the handicapped section, and with no tram it's a bit of a walk, compared to what you'd think. Epcot it's off to the far left of the entrance, but you get the first couple rows, so you're still really close. AK is just really close too.