I haven't used it, though you can always try it.
Ask for a media kit and examine the demographics. My guess--just a guess--is that they won't be too encouraging. Consider: The people who use buses (the people who'd see the advertising and would be your potential clients) probably don't own cars. (That's why so many car dealers advertises on bus benches.) And if they don't own cars, then they probably rent, rather than own. But financially I'd guess that they're more likely to continue renting than to consider buying a property.
Still: Get the media kit. If it makes sense, give it a shot.
Hope that helps.