Well after buying and then selling a pair of these when they first came out I finally succumbed to the sale pricing on these this season and bought a second pair. Fit is still a pain but I am finding these more comfortable than the first time around. Sound wise these really were and still are the bomb. I have a pair of the M100 as well so will do a comparison but I am pretty sure the M200 will slay the M100. Trying out the small comply tips but suspect I will settle on the large silicone tip. Sure wish KEF would go back to the drawing board and just tweak this IEM making it more ergonomic because it does sound sublime.