The first half of the redevelopment of Birmingham's New Street Station opened last year
Birmingham New Street has been named as the worst railway station for "overall satisfaction" in a rail watchdog study.
Passenger Focus quizzed 30,000 train users across the UK and found fewest were happy with the service they were getting at New Street.
The station is currently in the middle of a £650m revamp. The first phase was completed last year.
London St Pancras and Birmingham Moor Street were named as the stations offering best "overall satisfaction".
Nottingham was named the dirtiest train station and the worst for choice of shops. Liverpool Central was named the cleanest.
David Sidebottom, acting chief executive of the independent watchdog Passenger Focus, said: "Stations are the gateways to the rail network and can really affect a passengers' overall journey experience.
"While investment has paid off with good scores in some key stations, others lag behind. What's important is that the industry now looks at things that matter most to passengers, and targets its investment in making sure those are the things it sorts out first."