I was in a refurbished Business Class car on 141 yesterday--the seats are attractive, it was clean (and looks easier to keep clean)--and I liked the lighting. There was a nice amount of room between seats. (However, there was another car with the new seats in coach, and they looked just as cramped as the old ones.)
The car smelled fresh (or rather it didn't have any smell, like the old coaches do). My only complaint is that I found the seat material harder than the old seats and couldn't get comfortable.