I love this roundabout, we live down the street from it. People around here drive comically bad, mostly from what i suspect is simple inexperience (many new drivers), with a surprising side of entitlement (super rich area). Together, its become my favorite experience to see all the ways people fail to navigate this wild "roundabout".
And yet it still mostly works, and is loads faster than the former lights that were there before, so i suspect it will be a success in most eyes once everyone adapts.
For additional fun, check out the sticker price on this intersection overhaul (which includes much more than the round about).