Pennine-Paul
Goth on a bike............
i like coaster brakes for their simplicity and consistent (albeit average) performance in any weather. one thing to keep in mind that they are have some drag due to the spring rubbing inside the clutch and may start to squeal if it's low on grease (clutch turns with the wheel while the spring sits still). you can see this in the photo with the rusty old grease and how the edge of the spring coil is ground flat. it becomes better when it's run in.
I have to say it did clunk and clank a bit the first hundred miles or so,then it quietened right off,not that you could feel anything dragging,
it occasionally has a bit of a rattle, but if you apply the rear brake briefly, it stops (I'm guessing the brake shoe is causing the noise)