[decadentcactus]

Agreed, they're simple to use, even the 2 lane varieties.

I think the problem is as mentioned, often American ones are much different. It seems more like a free for all circle with a random bunch of roads exiting and entering, with no lanes marked. Also construction obscured the view to the left.

I did come across a few "normal" roundabouts at least, but they either don't exist or are terrible.