The new coaches are great! The only oddity I've noticed so far is there seems to be a dramatic speed loss when the automatic transmission downshifts from 2nd to 1st when coasting (gas and brake off). The coach goes from 17-16 kph down to about 5 kph nearly instantly. It makes sharp turns a bit awkward, because you suddenly end up nearly stopped mid-turn instead of keeping your speed.
The MAN coaches and the Neoplan don't have this behavior. I use the same control scheme and device (G27 wheel) for all of them, so I don't think it's an input device issue.