Wheely bins work well for those with detached houses and storage space. For many folk in terraces or flats they're a storage headache and some local council terraces near us now look a complete mess with stacks of bins cluttering up the front gardens. They're also unstable in high winds and "blow overs" are common with rubbish strewn up the street.
Having said that, still better than black bags ripped open by animals.
Tim