Having come upto one on NYD in Manchester (it's near work), the three of us riding just used the road. They are OK if you aren't at all confident, and don't want to make progress.
They should be good if you want to make progress: the bike signals should go green before the carriageway ones and can actually be timed to go green before you have to put a foot down. Confidence can't fix the problems with the usual road signals letting motorists go at the same time.
They are confusing to all road users.
I don't see what's confusing: you pick your route through the junction and wait if you get a red light. It's not at all confusing to carriageway users or walkers because it's basically the same as any other junction, although with slightly longer reds for carriageway users and more greens for walkers than the more common layout would have. Maybe it's a little confusing for some cyclists who don't realise that you don't have to wait for a light turning left and can do right turns from the ahead lane, but that'll be less so as they become more common.
There is also a complicated junction near where I work, but the designers have made the bike lane and pedestrian land switch sides a few times - fortunately it's not heavily used by either pedestrians or bikes.
Side-switching is a complete 🤦 but designers have been making that mistake for decades. Hopefully the signing matches in each direction, unllike one I've seen.
If only that was a joke. Someone needs to go back to design school!
Just what is wrong with a pedestrian/cycle crossing, rather than anything overly complicated.
Where? Instead of the roundabout? Nothing. It should probably have been a zebra or two across the cycleway.
But if you mean instead of the CYCLOPS, well a "toucans all round" layout has numerous disadvantages, including that you have to push the beg button to use a toucan so it can't easily be given a green wave.