My current helmet is a medium RF-1200, and it's over 6 years old so I'm starting to look into replacements. I've had my eye on this helmet for several months due to published reviews, the price point, and the included dark visor.
I really wanted to like this helmet - the size medium I bought was very light, looks good, and the comfort liner is very comfortable (cool to the touch and smooth). The main reason I sent this back was because after having it on for just under 30 minutes (just doing stuff around the house & watching TV) I started to get a headache. After I took the helmet off I realized I had hot spots on my forehead and the top of the back of my head. I guess this is shaped a bit rounder than my RF-1200.
Minor nitpicks: getting my glasses on wasn't as easy as I'd like (but once on they sat properly & securely), and the visor latch seemed like it wouldn't be easy to actuate with gloves on.
I would absolutely have kept the helmet if the medium fit me as well as my medium RF-1200.