let me speak a few words before the Model F fanatics get to you:
I like Model F most of all switch types.
However, sometimes things screw up. I've had Model Fs come to me with what seems to be keys busted out of place (during shipping?), the keyboard smashed badly (bought from someone on this site, too - and it isn't the cracked casing I was talking about on another thread!) and the spacebar fell out on my F AT when I turned it over.
One problem that even the fans will agree, is that when you replace the keycaps, sometimes it is very hard to seat the keycap precisely right. In that case, the key will not actuate or will actuate endlessly. You will have to pull it out, put it in, tilt the keyboard, etc.
Another thing that few will dispute you on, is that the casing is brittle.
My point? Capacitative buckling springs feel great, but they also have their flaws. Unless you are prepared to get your hands dirty (and often, very dirty, since the plate inside has rust on it), you might find your Model F experience disappointing.
I still have 6 months left to fix my Model F122, as promised to Fohat. After other bad experiences with the smaller XT, I really, really don't want to open it!