RMR

Fit: Excellent. Works with my helmet and offers a large field of view, especially downward. Fogging: Doesn't fog from the inside, but the outside fogs from your breath when you're standing around or hiking. Regulator adjustment doesn't seem to do much. Strap: Almost too wide for my helmet's latch. Helmet pivots are pointless. Lenses: Nice colors (note: Sensor Mirror is very light). Extremely hard to change, though, which is where it loses points.

I just got these and haven't had a chance to use them, so I can only give some tips on sizing and overall construction. As per the description, these fit small. I'm right in the middle of the range of Large sizes out there, but this fits very well in Extra Large. The finger length is almost a full size smaller than you might expect and the palm circumference is about two-thirds of a size smaller. The fabric is extremely thin, so don't expect any insulation. The back surface is windproof, though, and keeping the wind out is good enough in dry weather down to maybe 5°C (40 F). The palm is a thin, jersey-like material that's not windproof. The palm is covered in silicone rubber Castelli scorpions - very grippy! My only complaint from my living room test is that seams along the fingers are unusually bulky on the inside and feel somewhat intrusive. Hopefully they'll crush down with some riding.