I don't think most people in the UK who express an opinion on it have ever actually used it.
I used to live round the corner from the magic roundabout. It's actually fine. The best analogy I have for it is juggling, if I concentrate too much and overthink it I drop the balls. If you over-think the magic roundabout it can seem intimidating, but when you're actually there it makes much more sense and you just go with the flow. You're not dealing with the whole system in one go, most people just take it one roundabout at a time.
One of the reasons it seems to work is that people take it easy, everyone is paying attention to what they are doing, and most people take it at a sensible speed.
What I don't understand is what advantage it has over just a single big roundabout. A single car may be able to save a few seconds by going around in a different direction, but I can't picture any actual throughput advantage.
I used to live round the corner from the magic roundabout. It's actually fine. The best analogy I have for it is juggling, if I concentrate too much and overthink it I drop the balls. If you over-think the magic roundabout it can seem intimidating, but when you're actually there it makes much more sense and you just go with the flow. You're not dealing with the whole system in one go, most people just take it one roundabout at a time.
One of the reasons it seems to work is that people take it easy, everyone is paying attention to what they are doing, and most people take it at a sensible speed.