They've got their new trains, and the line has been electrified, but still GWR's timekeeping is abysmal. It makes you wonder what they will blame delays on in the future, when everything has been supposedly upgraded! Running 44 minutes late, 800030 & 800007 pass Challow on 15 November 2018 with the 1Z38 08:56 Cardiff Central to Paddington service. This was running suspiciously slowly, which probably explains why the 27 minute delay in leaving Newport had doubled by the time it got to London. This was a replacement for the 1L38 07:59 Swansea to Paddington, which was cancelled at Port Talbot Parkway. GWR really needs to get their act together, as this was by no means the only late running train I saw during the short period I was at the lineside.