Here’s a spreadsheet showing the late running, cancellations and part-cancellations at Slaithwaite and Marsden over the first two weeks of the new timetable.
Red is cancellations, and there’s quite a bit of that. Blue is part cancellations, in the form of trains terminating at or starting at Stalybridge. Not possible to pick these up from the week of 20-27 May, so it’s actually worse than shown. Yellow is late, by various amounts.
Green is on time. There’s very little green showing.
Two of the supposed advantages of the new timetable were reduced journey times and the ability to put in stop orders on other TPE trains so that Marsden and Slaithwaite passengers were not stranded for hours on end.
Neither of those have materialised. A typical delay of 15 minutes wipes out any reduction in journey time, and where there should have been perhaps 30 stop orders over the last two weeks, it appears there have been just two.