Mine is the class 170 and 156
wow!
aren't they just like the 170s? but with a different coupling ?
175s, splendid units.
never travelled on a 159 but looking in from the outside at Exeter St David's they do look very nice.
They are indeed nice and comfy. One of my colleagues commutes into Exeter from Axminster, and shockingly is fresh as a daisy compared to me and the wonders of the PacerverseOnly thing that needs improving on 'em is some charge points and wifi, but those are minor things on the whole.
Not been on a 165/6 yet, but I assume they are pretty similar to the 150 family, seating wise. They'll be here....eeevvveeeennnntuallllly......