Mine is an SL, and I love it so much I'm starting to think about thinning the rest of the herd (of rackets clogging up my life, I mean).
There are so many rackets on the market – too many, really – that as long as you're willing to tinker with lead tape, you can get your preferred weight/swingweight/length/headsize/stiffness from a dozen or more different frames. Thus, the real deciding factor is more often than not the frame's feel since no two feel exactly alike... and the 105, like so many Fischers, just feels delicious the way it sheds vibration. It makes you want to hit another ball with it right away.
I steered clear of it for a long time due to the very open string pattern, having long enjoyed the spin window of wider string beds tempered by the lower launch angle of tighter patterns, but so far I don't mind the 105's pattern.
Hell, I even like the graphics.
It doesn't leave flat serve potholes on the court like my old red & silver Pro Number One, but it doesn't leave little tears in the tendons surrounding my elbow, either, so that's good.