Its not an intercity its a commuter. The only reason it is getting an intercity to run a commuter service is because of the resources.

Time advantage to passengers by making the extra stop 2 minutes

Downside is the train fills up with punters making the hop from Lansdowne to Dun Laoghaire

The 22k is no designed for frequent station stops with high passenger turnover

no sign of them using a 22k yet and the train has not been particularly busy the times I've used it, but I see your point.

I'd imagine by the time of the next timetable they'll be rostering a commuter train on this run and might add extra stops (if they ever get round to putting a 22k on it in the first place). Its a handy service for me, even if it is frustratingly slow ("Frustratingly slow" should be the motto of the Rosslare line...)

Its meant to be a 22k but it appears not all drivers on the Rosslare route are trained yet

Rosslare line is always going to be slow due to the twisty and hilly nature, that said journey times are significantly down compared to the 1970's, the target time Dublin Rosslare was 2:35, current best is 2:47, 12 minutes which makes one of the closest to matching the promise, it will be less than 2:45 next year

;) you said it!!

It was 2:35 ? I cant see why this upcoming timetable cant do 2:30 excatly with new trains new signalling whats the problem?

Ontrack 2000 program gave that as the post investment time