The TfW service to Manchester was delayed by 50 minutes last Wednesday I was there but the voice was very quiet so hard to tell to be fair. Also I was at Meadowhall and the PIS wasn't even announcing the services when I was there in Jan. Only Northern station I've used that had a working PIS was Marsden and a couple of the Hope Valley stations.
Apparently they’re awaiting a ‘replacement part’ at Meadowhall - I agree it needs sorting soon as fast trains pass through and it helps to warn passengers/leisure shoppers to stay back when the trains approach - particularly if there are young kids running around on the platforms.
Northern don’t really manage their CIS system well unfortunately, especially on the west side. Common issues seem to be poor coverage of speakers, new recordings not being configured properly or the system not working at all. Their system has been upgraded in recent years and Celia can now announce the location of a train when there is a delay, delay repay details and where there is disruption on the network. I doubt it’s the system that’s naff as Chiltern use KeTech as well but theirs seems to be better maintained as it is much more reliable.