I'm no trainspotter, but when I came through Paddington this evening I thought it looked like a Heathrow Connect train standing at the Heathrow Express platform. Turns out it was, as the Express trains all have cracks in them or something. As a result all Heathrow Connect trains are cancelled and they are running the Heathrow Express service. They've made the Express fares a bit cheaper, but there's no Business First, WiFi or power. Journey time is the same. Details here: https://www.heathrowexpress.com/timetable-schedule/service-plans Worth keeping an eye on this if you need to get to LHR anytime soon via train.