There are some cycle paths around my way that I would use, but the entry to them is not entirely obvious (particularly in the dark) and once you have missed the first entrance, you can't get on them.
It would be good if their were a few points where the kerb dropped and you could join if you missed the first one.
Most urban cycle lanes (particularly the ones painted on the road) are poorly thought out and more dangerous to use than just sticking on the road (IMO).

