The 20S-01 has great sound quality and a number of mounting options so it should work well with virtually any helmet. It also has a wide, 2km range which is a step-up over the old SMH10.
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Pros
Pro Wide range
You'll be able to easily communicate with others while on a ride. The range is quite wide at around 2km as long as line of sight is maintained.
Pro Intuitive controls
You'll be able to easily control the 20S-01's functions. It features a jog-dial which you can twist or press to do functions like adjust the volume and activate or deactivate the intercom.
Pro Ambient Mode is a convenient feature
You'll be able to easily converse even with your helmet on. This headset has Ambient Mode which you can activate at the press of a button. Once on, external microphones pick-up ambient sound, making them easier to hear.
Pro Very good voice quality
Your voice will sound clear from other riders' headsets. Not only does the 20S-01 produce clear and full voice, but it also eliminates wind noise quite effectively.
Cons
Con Expensive
While you do get improved performance, lower end models are cheaper and offer pretty good performance.