[mc32]

I think the problems above are mostly for new users. Those unfamiliar with their way. But... lots of this is solved via navigation apps and even proper signage.

On there other hand they have a maximum throughput and that can only be alleviated by an interchange --even modest ones.

[derbOac]

My experience with roundabouts is they work wonderfully in some places, and horribly in others. I feel like at least where I am, because they work so perfectly and elegantly in certain situations, better than other solutions, they then get overapplied, in situations where they are horrible.

It's a variant of the "when you only have a hammer" analogy: when you first learn how great a hammer can be, everything looks like a nail.