I was a bit better and somehow fortunate.
When 100 launch I was aware if the high impedance and did try out a couple of audition and as you said the machine lacked horsepower (dynamic) and to me is no better than my iPhone (only to be small). I did not bother to try the 100Mk2.
I did try out the 120 and same as you said it was better but not really justified the price and over time somehow someday and some reason I took the plunge into the 240 LOL
anyway, i was more upset with the original 100... bcos I didnt really enjoy the sound coming out it... I think I will feel better with the 240 even if AK decides to ditch it next year for a higher end model haha... because I enjoy listening to music with it now