I have had a couple of modulars in the past and purchased a Shuberth C3 a little over a year ago. I find its fit, for me, to be excellent and noise as lower as any helmet I've used, including full face models. It is significantly quieter than any other modular (HJC, Noland) I've worn.
To summarize my impression, I have since purchased a C3 for my wife as well.
On an added note, we have had some issues with the SRC Bluethooth audio systems we've installed but in fairness, I have not yet downloaded and tried their firmware update which may resolve those issues.
On a positive note, the helmet we purchased for my wife turned out to be to small, putting pressure on her forehead after several hours of wear. She got her helmet shortly before we departed on a 3 week trip and complained 3 days into the trip, that she could not go on. I contacted Schuberth on a holiday Monday and the great lady there called around the country and found what may have been the only unit available one size larger at an online dealer. (Her ladies size had just came out and was backordered almost everywhere.) Between Schubert, the online retailer and myself, we managed to have a new helmet shipped overnight to a mail box location in the town we expected to arrive at the following day. There customer service was exemplary.