It's always interesting how experiences with the same piece of gear vary so much. I'm on my second XD4. They fit my semi-oval head really well with the 30 mm cheek pads. My last one saw 75000 km. of mixed use over 5 years. The foam pads compressed enough over time to loosen up the fit, but the only part of the lining that showed any wear was along the back edge where it joins the shell. There's some wind noise at highway speed (690 Enduro R with the small OEM windshield) but no worse than other helmets I've worn. I always wear ear plugs so not an issue. Never had noticeable vibration issues devildogg described but I have found the white nylon screws loosen off over time and keeping them tight seemed to reduce some of the wind noise. Anyway, what matters the most is a good fit, so noggin shape and size are the starting point for finding the best helmet for yourself, then cost, then features, then input from reviews (taken as opinions and not as gospel).