I was intrigued, but not $1,200 intrigued. Then the EOS-M was selling at $299 so I got one of them instead, couldn't be happier.
You pays your money and you takes your choice.
I love my 85/1.8 and don't think the 85/1.2 L is worth five times as much. The marginal benefit isn't there for me
. For others, it is.
On the other hand, I don't think the EOS M measures up to the X100S. There are big differences, starting with an OVF and a built-in flash. Focus is quick. Images are sharp. Skin tones are spot on. Fill flash exposure just works. There is no wait for the flash to recycle. Bokeh is pleasing.
I haven't really had trouble with flare so I haven't bought the hood. If I did, I wouldn't buy Fuji's overpriced filter adapter and hood. I'd buy a third party one. I used the reversed empty filter ring technique at http://www.kenrockwell.com/fuji/x100s.htm#recommendedaccessories
I bought 49mm Tiffen protector for $4.50 and removed the glass, then mounted a multicoated Hoya UV on it. I have the original metallic ring on that. I'm not seeing vignetting of any note with all of that.
I take my X100S everywhere
. Seriously, like my American Express card, I don't leave home without it. It won't replace my 6D but it is a nice camera to carry and use.
Now if and when the next generation of "M" comes out, and if they address more of the issues, I might get one. By then perhaps the X200 will be out, and the choice may be very different.