That is to some extent a fair point, but the Pacers were new territory for a state-run company on a very tight budget, hence them ever existing in the first place. The Voyagers were a modern day train being designed and built with all the technology you could possibly want. There have been enough long distance trains of various types in various countries for the designers to appreciate from the outset that they are cramped, rattly and in no way as pleasant or civilised to ride in as their predocessors. I have to say that I think that's a pretty poor show. When you look at a Turbostar or Electrostar or Desiro etc, there have been several fleet builds of all of these to pretty much the same design and they all seem to have been essentially decent trains from the outset. The heavy, rythmic interior vibration on a departing Voyager is decidedly worse than on most of the 20 year old 158 sets that I work! A feature both trains do share however, is the sauna-like conditions in the vestibules on a warm-ish or worse day. On a train that is two decades old it is to some extent forgiveable, but what's the excuse on a Voyager?