The train station is great. There is a direct train from the airport to the train station, from where you can go to any part of the UK. Comfortable. There are waiting areas for business class. There is a nice pub restaurant near the platforms where you can eat delicious food. If it's expensive in a restaurant, then you can go to simple snack bars, there are a lot of them. Announcements about the arrival of the train can be read on several boards or listened to. The station is very clean!
The train station is like a train station. Easy navigation. There's a subway right there. There were no problems. The only thing is to take a picture with the figure of Paddington Bear.