A personal observation about topos generally. They are not primarily for road navigation, and are much less likely to be kept up to date than dedicated street maps. Also they can be flaky for road navigation especially in the city. They will even try to route you onto roundabouts the wrong way in some rare cases, so best only use them for city driving if you absolutely have to. No one should expect a City Navigator to be much use in the bush either.
'Horses for courses'.