This must be a route-dependent thing (e.g. Sandymount routes would have lots of students on them). My routes rarely/ever have trash or liquids on them, hit branches etc.
Again re: seats and engine....these are the same seats and engines used in Germany and England also.
Again re: seats and engine....these are the same seats and engines used in Germany and England also.
Still, I prefer the trains to buses in Dublin.