I have a Utopia.

Positives:
- very high build quality, everything is polished and perfect
- great ventilation for any helmet but really impressive ventilation for an aero helmet
- sits at just the right "depth" on my head: not too high, not too low. it's also low profile.
- great straps and retention system (works well with my glasses)
- best looking helmet sold, in my opinion (?)

Negatives:
- no MIPS
- narrow, minimal pads can be uncomfortable for some, especially on brow (not me, though)
- rear retention system can slip vertically on occasion
- fairly expensive and essentially never on sale
- nowhere to store glasses