Really? I hate the CS3, I find it terribly designed. That's not to say other places are worse. The thing I dislike is the feeling you get: "There you go, we've built you a superhighway, no more complaining, and make sure you get out of the way of all the cars because they're more important than you are."
Problems with the CS3 and other similar routes include:
# Crossing T-junctions across right-turning traffic.
# Very narrow in parts.
# Swap from one side of the road to the other, taking you at a right-angle across moving traffic.
I get the distinct feeling that motorists and pedestrians around the CS3 feel they need 360 degree vision because they never know which direction the cyclists are coming from.
I just call that 'executing a right-turn'.
I do take issue with the position of the turn area. Because the turn leads to a contraflow cycle lane on a one-way road with the cycle lane on the 'wrong' side, the position to take up when waiting to turn right is sooner than for a normal junction which confounds the expectations of every other road user around you, unless they know the area and/or are paying full attention.
In comparison, London is awesome. I miss the CS3.