Yes its good having the 1730 running to Swansea. It also partly makes up for the 1830, which for years went to Carmarthen and was one I often used back in the day, now being terminated at Cardiff.Quite
Though presumably running later means that the driver would be over hours.
At least we get the 17:30 from Manchester as partial compensation (I say partial because it is often short-formed and only seems to be booked as a 2-car from Cardiff)
Yes it looks like this one splits at Cardiff not Swansea however its likely due to sets being in the correct place for the following day.
Also this morning it looks like the 05xx from Swansea was a separate service as far as Cardiff and ran as a pair of 153s!