David Hubbardwrote a review of Smith Quantum MIPS Helmet on April 1, 2019
Familiarity: I've put it through the wringer
At the time of my purchase this was Smith's highest end helmet. I'm very happy with it overall, as it is comfortable, and the research suggests it will be a great option to have on my head if I ever were involved in a crash. For those of you considering wearing it with non-Smith goggles, I can tell you the Dragon X2's fit perfectly with it; I love the combo.
The few aspects I find annoying: 1) It has a magnetic chin-strap clasp, versus the typical push-in / pinch-out style common on most things for the last decade. What this magnetic clasp adds in ease of removal, it it also adds tenfold in annoyance for connecting it; no matter what I do, with gloves on, I can never seem to get the two sides to connect properly; it's annoying enough I'd prefer to just go back to the old style. 2) The fabric parts range from difficult to impossible to remove for washing, so I wear a headsock under it, which is not always desirable. 3) Limited color options.
Adding a pic with the Dragon X2 goggles so you can see the flush fit.