The bus prices don't seem realistic. Is it set in 1965? ;) Given the level of detail you'd think they'd be looking to create something a bit more realistic.
The user interface looks a bit confusing, the best one for this type of games I think it's the Transport Fever one (not Transport Fever 2 though). But there are a lot of details to manage, it's a shame you can't follow every single bus during the shift...but since you can play in any city you want, it would be hard to render them real time in a 3D graphics.
Am I the only one wondering why the only two options for the bathroom door are clear and tinted? It isn't a bathroom with stalls either. Seems like a bit of an oversight to me