I needed to travel to the West Country, from 2017 to 2019. Got the train to Reading and changed to the train coming from Paddington to Exeter. Always booked a seat on A carriage, the quiet carriage and it was really good. GWR. Once we were waiting for the train at Didcot to Reading, when they announced a train was coming through non stop. It passed in the blink of an eye. Really unnerved my husband who was wary of trains. My experience was they are great and a good way to travel..