One week ago I got my Flexor license and now I build my first patches in between the last days and I think only the filters are worth the pack ! They sound really smooth and analog like. Very nice!
A sound close to the Oberheim stuff (generally: very analogish), and my first experiments with only utilizising the Flexor filter modules sound very cool. I don`t think the CW filters are bad, but the Flexor and the CW filters complement each other quite well... And yes I prefer the Flexor ones...

because they sound smooth as butter...

Really this is a very nice addition to my arsenal of audio weapons.
In 5 words:
VERY VERY VERY VERY NICE! hehe

the bad side is that I will find even less time for making music, but spend more time with the toolz. But thats okay so far.
