Good luck. I've only seen one person say they really liked the Masso, and they didn't elaborate. Every other person I've seen using one has found issues with it.
I haven't seen any of these people posting about their experiences.There are many here that use the Masso without any issues.
Since you mentioned a Mac, this is obviously a biased opinion. I haven't really had any problems with Windows since Windows 95.And please don't talk about "problems" when you're using a windows based system. Nothing is more problematic than windows.