I don't think any of the Bangle-era design BMWs have aged well at all. I think the fact that BMW moved back to the 'one sausage, different lengths' styling after just one generation shows that Bangle's much hyped take on the 'flame-surfacing' style wasn't perceived as the brand's savior, but just as odd bordering on ugly (holy run-on sentence batman).
The only design of his I liked was the 6-Series, and that was only because it was strikingly different to anything else on the road and had plenty of presence. Was it easy on the eyes? Hell no.
I also think Adrian van Hooydonk is a name that is flying under the radar a lot - he's worked at BMW for a very long time, worked under Bangle, and then succeeded him. My best guess is that he's the one who did most of the leg-work, whereas Bangle to my eye was just the mouth piece trying to get everyone onto the hype-train