Pacers give a much better view for passengers than a 150 on scenic routes such as the sea wall for example, and FGW/GWR has looked after the units a lot better than many TOCs. They're nippy too, often waiting time at Newton Abbot after a run up the branch from Paignton (I assume the standard timings are set for the most sluggish units in the pool, probably 153). On welded rail the ride is excellent. It's only when you get onto jointed rail on the branches you get the nodding effect, and that's all down to the 4 wheel fixed chassis design. The last sections of jointed rail on the Torbay branch were replaced a few yeas ago, so a pacer ride to Exeter is now very comfortable. They don't half squeal though when going round curves, regardless of the rail type, due to that fixed wheelbase.