I've had a Strad for 4+ seasons
I went from a top of the line Giro of 1998 vintage whose name escapes me but was duly sacrificed in a crash. I've had a few Strads since then, changing primarily due to accidents.
For my shape and size of head, the MET's fit extremely well. The Strad's well vented and after a while, you really don't notice it. In fact, you feel incredibly secure wearing the thing. I bought an MET Element V last summer which is incredibly well ventilated but I would classify it as a summer only helmet.
Accidents in the Strad- #1 going 25 mph and then ramming a pedestrian (he survived) who was crossing against the light. Major endo, landing on my head! Helmet did its job although I felt like a turtle for the following week. #2 Swerving to avoid a truck that had come into my lane, ran flush into the back of a stopped car, Ford Fiesta at 20mph+. Again, the helmet took the brunt and again, no problems.
I'm a great believer in these helmets. While MET has elected not to go through the bother of obtaining CPSC certification as they do not wish to be exposed to US litigation, they are CE standard certified.
Your really can't go wrong with either choice but I've had nothing but great experience with the Strad.