We thought Cork itself was a bit disappointing, we got a train & walked into the town....then walked right out again. Cobh is a charming little place but not much to do or see. I have always thought Liverpool was a dangerous place & have no wish to go there. Rest of the stops are as described by others.
I agree the the Southampton area is not promoted well, odd that it is described as "Southampton, London" by Princess (I think). As A&K says there is a lot to do & see in the general area.