A report from consultants Credo, in association with the Campaign for Better Transport, claims there are "huge disparities" in the quality of train services in different regions of Britain.
In Wales they're less well-used, less accessible and have low satisfaction levels.
A spokesman for the Rail Delivery Group, which speaks on behalf of the rail industry, said:
"While there is always room for improvement, rail passengers are travelling on services that are unrecognisably better when compared to 15 years ago".
More top news
Samata Ullah used a James Bond style cufflink to hide his support for Islamic State.
British Heart Foundation Cymru says one in five adults have not ridden a bike in ten years.
Swansea Manager Paul Clement feels Swansea have turned the corner in their battle for Premier League survival.