Call me when they make a living room sounding can for $300! I'll be all over it!
I'm tempted to get these since my M-80 isn't very comfortable, but i LOVE the sound. It would be the perfect set if the 160Hz and lower were 3dBs louder. SERIOUSLY.
The M-100 looks to be very close. Tyll and HA liked it so... they influence me. But, Miceblue isn't exactly blown away and he is one of the more active M-100 owners here. So I'm just 2/3 sure that I want them, haha.
What you have to realize, is that he has more experience with a variety of headphones -- and he is listening to different music styles than you.
The amount of utility you will gain from upgrading will probably not be much, depending on your preferences.
Mice has different preferences than you do, just as I have different preferences than other people here as well. I think the problem with Mice is that he, as well as I, would prefer a tiny bit less bass and a bit more detail in the headphones. But that is a personal preference. And I still think the M100 has a lot to offer a lot of people for their individual needs.
The only way you would find out if you prefer these headphones is to give them a test drive yourself.
If it suites your listening needs, then go for it. =)