Has it reduced pedestrian space? As far as I'm aware none of the pavement space has been taken away?
I do wonder when most people are using the lanes as well - I'm generally only along in the mornings, about 8.30ish, and usually see 4 or 5 other cyclists using it. Though the other point to raise on cyclists not using it is that it's not necessarily that this piece of infrastructure itself is terrible, but rather that the connections to it are awful. It would be a shame if the conclusion was cyclists aren't using it, therefore we need to scrap it; rather than, cyclists aren't using it, why not? (hence 'trial' from which we can hopefully learn).
p.s. I quite like the lit up trees....
p.p.s. however I did advocate once upon a time this being a beautiful continental style boulevard free of any cars, like most other European big cities have somewhere, and of which the rest could be envious of given the light and the architecture and the simple grandeur of the place. But hey, it's an arterial road!