I shall be out & about there on Friday morning....we'll see!
How did things go, Chris?
Certainly from the Birmingham, Banbury, Oxford, Didcot perspective it was a bruising day all round with punctuality in the evening peaks hit very badly as has been discussed elsewhere - any poor unfortunates who may have elected to travel to/from Bicester Town as per my suggestion would probably have had a bit of a nightmare. The trains running from Marylebone to Aylesbury Vale Parkway seemed to perform much better.
Sadly, passengers on the hourly Birmingham to Didcot services fared badly as well. Most of them were running late (not helped at all by a mere 5 minutes turnback time allowed at Didcot Parkway) and the severe delays on the
FGW▸ routes meant that a lot of connections were missed.
XC▸ services bore the brunt of many extra passengers too with busy Friday loadings swelled to almost breaking point on a number of trains - many people abandoning the 'official' timetable via Didcot due to the delays!