Elorith
Member
They really are very comfortable and excellent trains.I was on a few on Friday, although it was hot I don't think they were that bad
Not as nice as the 450s or 165s I used as well but I wasn't uncomfortable either.
I would definitely say the 455s are far more comfortable than class 345s
It's only really the lack of aircon that's an issue for a small part of the year.